Long time back i found this comprehensive list of cool places to visit in SL.
If someone can tell me the source, I'll greatly appreciate it and acknowledge the creator of this list.
GardensAcropolis Gardens: Large multi-sim garden with mountains, waterfalls, lakes, a volcano, and beautiful hiking trails
Bliss Basin: One of the premier dating spots in SL, with 2 trails circling a large lake with beautiful views and waterfalls; lake is rumored to be visited by mermaids :P
Chakryn Forest: Explore a lush, romantic forest with a treehouse, grotto, and a bath? ;P
Eternal Reflections: Romantic garden sims with trees, flowers, waterfalls, black sand beaches, trails for romantic strolls, and even a jazz club; one of the Reflections sims
Fairytale Gardens of Sinano: A lush, beautifully landscaped garden with fairytale cottages...
Heavenly Rose: A rose garden and one of the top romantic spots in SL, with an amazing number of poseballs! Also has a cool underwater house and dance area :)
Kenroku-en Garden: A replica of the Real-Life garden in the Ishikawa Prefecture, Japan; an amazingly detailed Japanese garden, next to the replica of the historic Kanazawa Castle
Lauks Nest: Mayan-style ruins in a lush jungle and a waterfall
Lost Gardens of Apollo: Garden sim with semi-secluded sitting areas and beautiful sunsets, great for...um...chatting
Mars Japanese Gardens: A peaceful Japanese-themed garden by the sea
Midsomer Isle: A romantic themed garden with streams, greenery, and lots of secluded areas; perfect for a stroll or sitting together for a chat
Romantic Joy: A garden sim with beautiful trees, flowers, brids, and plenty of secluded spots for you and your friend to explore...
Second Life Botanical Gardens: A garden with wonderful sounds and sights, with trails winding through waterfalls and secluded spots
Secret Reflections: A giant sim-sized cave with waterfalls, greenery, and lots of poseballs; also the adjacent lake at Midnight Reflections
Serenity Falls: Come see 2 sims worth of model homes and walk among the beautiful gardens
Straylight: A showcase sim of paths winding through lush forests, streams, and lakes; full of sculpties and a touch of light effects :)
Svarga: A beautiful lush tropical rainforest with an ancient ruin, feels like set of King Kong
The Rainforest: Aztec-themed sim with rainforest, pyramids, and secret areas to explore
Mermaid (just because ;P)
Abyss Museum of Ocean Science: Lots of exhibits about the underwater world, with an interactive display where you can visit the deep ocean; perfect place to take a mermaid ;P
Algarond: Fantasy role-playing in Middle Earth style, in a sim with an active community; with all the creatures from the fantasy series, even mermaids ;P
Anne Bonny Cove: An entire sim for mermaids (and pirates for us to play with ;P), with a wonderful underwater area, lots of poseballs, danceball, and the Sirens Mermaid Mall
Avilion Grove: Visit the enchanting medieval-themed sim for some formal ballroom dancing and walk around the gardens; practice some light medieval role-playing while there
Bliss Basin: One of the premier dating spots in SL, with 2 trails circling a large lake with beautiful views and waterfalls; lake is rumored to be visited by mermaids :P
Elf Circle: A slice of Middle Earth, where Elves, Dwarves, and other fantasy creatures roam; a set of 5 sims with a common Elven theme
Mermaid Guide: My guide to becoming a mermaid, with places to visit and get mermaid stuff :)
Heavenly Rose: A rose garden and one of the top romantic spots in SL, with an amazing number of poseballs! Also has a cool underwater house and dance area :)
Isle of Tranquility: A pretty island with a treasure hunt that leads your thru the sim, including all the cool underwater places; highly recommended for mermaids :)
Sirens Dance Club: A dance club for mermaids :) With a mermaid dance ball, mermaid mall, and a giant mermaid tank!
Real WorldAfrica: Sculptie trees, wild animals, and romantic spots fashioned after the wild plains of Africa
Barcelona: Shops, live music at The Café, the Columbus Monument, and guys from Barcelona :)
Bollywood: The movie capital of India in SL, come listen to music and watch movies from Bollywood, along with a disco and rides
Chichen-Itza: One of the New 7 Wonders of the World, a sim full of Mexican sights from the Chichen-Itza area, along with a garden, waterfalls, and a Mayan disco :)
Christ Redeemer, Colosseum, Taj Mahal: 3 of the New 7 Wonders of the World here in SL (or close enough :) )
Dresden Gallery: A reproduction of the Real Life Zwinger Palace in Dresden, Germany, including the Old Masters Picture Gallery (Gemäldegalerie Alte Meister); complete with all 750 paintings in the permanent collection!
Dublin: A replica of Dublin in SL, complete with many of the popular tourist spots
Frankfurt: Several connected sims making up the city of Frankfurt, Germany in SL, with sights from RL Frankfurt, stores, offices, and of course clubs :)
Galveston Island, Texas: Reproduction of a RL tourist destination in Texas, complete with attractions, beaches, and a popular live music venue
Gion Project Modeled after the Gion District in Koyoto, Japan, dress up in traditional Japanese outfits and explore a facination sim with wonderful freebies and things to do
Gossip Girl (New York Upper East): Check out New York, Gossip Girl style; 4 sims of the NY Upper East side, with scenes from the show and events
Hawaii: The Big Island and Oahu, featuring a community, outdoor trails, beaches, activities, and waterfront beach huts you can live in for free!
Hollywood: A corner of Hollywood in SL, with some well-known landmarks
Kenroku-en Garden: A replica of the Real-Life garden in the Ishikawa Prefecture, Japan; an amazingly detailed Japanese garden, next to the replica of the historic Kanazawa Castle
Machu Picchu: I couldnt find this New 7 Wonders of the World in SL, so I went hunting for the Macho Peacock instead :P
Mag SL Toyko Japan: The sims of MagSL are where the real Japanese crowd live and hang out in SL, come get a taste of Japan :)
New Orleans: A memorial and charity effort to aid hurricane victims, makes you feel like you are almost there at the Big Easy
New Paris: Its Paris with an Eiffel Tower! Need I say more? Poseballs and champagne everywhere
Paris 1900: Paris with Eiffel Tower, Moulin Rouge, French cafe, shopping, and real French people
Parioli Rome: A corner of Rome, Italy in SL, featuring shopping, cafes, sights, a museum, and Italian men :)
Rockefeller Center: Built by NBC for their Christmas Tree Lighting Event, this is a corner of New York with ice skating and a restaurant in the sky
Scotland: Visit Nessie's Pub, shop for all things Scottish, watch a movie, look for the hidden cave, explore the replica of the Eilean Donan castle, and get married in Celtic style
Toscana: A sim to promote the beauty of Tuscany, Italy; with a wonderful countryside setting, a beach, even a skypad business/art area
Venice Beach: Surf, sand, shopping, and roller-skating; just like the real thing, but better, cause you dont get sand all over the place :)
Virtual Morocco: The Morocco of SL, where there is a marketplace, mosque, beautiful beach, soccer fields, and a cafe worthy of the movie Casablanca (with belly dancing poseballs :) )
West of Ireland: An Irish-themed residential sim, complete with an Irish pub, art galleries, and the best surfing (yes, surfing) this side or Ireland
Yankee Stadium: A wonderful reproduction of the Yankee Stadium in SL, with baseball freebies. Worth a visit, but unfortunately not too much to do...
Role-Playing1001 (Arabian) Nights: A desert-themed role-playing sim based on the Arabian Nights tales; see the Sultan's palace, nomads, and even an evil temple...
Algarond: Fantasy role-playing in Middle Earth style, in a sim with an active community; with all the creatures from the fantasy series, even mermaids ;P
Avaria & Grendel's Children: An incredibly detailed fantasy sim, where you can explore, free-form role-play, or hatch your own baby dragon from an egg :)
Avilion Grove: Visit the enchanting medieval-themed sim for some formal ballroom dancing and walk around the gardens; practice some light medieval role-playing while there
Avilion Isle: Adjacent to the Avilion Grove and Avilion Mist sims, this is dedicated to Medieval fantasy role-playing with areas for above-ground and below-ground humans and creatures
Battlestar Pacifica/BSG47: Battlestar Galactica role-playing, where you live and work in one of the spaceships and even fight the bad guys (unless you are one of the bad guys ;P)
City of Lost Angel's: A dark role-playing sim full of vampires, demons, and other evil things; you can come and look, but watch your step :P
Crossroads: A dark role-playing sim set in the 1800's, with vampires, werewolves, gypsies, and even a few mermaids in a more...classic setting :)
Everwind: Medieval role-playing in 3 magical sims, with areas for different races and a quest that starts at the Dragon Weyr
Kowloon: A Japanese reproduction of Kowloon's Gate based on the Playstation game, this sim has amazingly detailed icky textures, tasks for you to perform, and lots of alleys to make you totally lost!
Midgar: A detailed Final Fantasy role-playing sim split into the Upper Plates and Slums; its usually busy and full of strange characters with big swords :P
Midian City: Beautifully detailed Goth sim in an urban city setting, always full of spookies of every kind
Missing Mile: One of the best slums in SL! Check out the bad part of town if you ever get tired of living the glamorous life ;P
ROMA (ancient Rome): A richly packed sim with all the famouse sights from ancient Rome crammed in; so much to see, it has its own visitor's guidebook
Starfleet Command Galaxy: Headquarters for Star Trek's Starfleet command in SL; come explore this sci-fi classic and check out the role-playing
Tarnburg: One of the largest and most popular Gorean sims in SL, with all the typical sights found in most SL Gorean cities (be sure to read the sim rules and follow them if you visit!)
Telos IV: Star Wars themed role-playing...a space station with every group of Star Wars character imagineable: Jedis, Siths, droids, stormtroopers, and everyone else...
Tombstone: A Western town in Arizona set in the 1860's, home of the OK Corral
Toxian City: One of the big Goth sims, with vampires, demons, and other nasty things roaming around
Transylvania: A spooky town of Gothic structures and vampires, with a castle, chapel, museum, shops, and community center (for vampires :P)
Wizard's Alley: A reproduction of Diagon Alley from Hermoine Granger (I mean Harry Potter :P) series of books
Chateau de Versailles: Role-play in part of the French royal court at the Versailles Palace, complete with beautiful gardens and a spectacular ballroom
Things to SeeAbyss Museum of Ocean Science: Lots of exhibits about the underwater world, with an interactive display where you can visit the deep ocean; perfect place to take a mermaid ;P
Aiot's Toon Wonderland: A sim dedicated to all things video game, cartoon, and animation; with different goofy areas to explore
Altstadt: A shopping sim modeled after a German village, with lots of cool carnival rides, L$1 bowling, and free beer on the south end of the sim
Avaria & Grendel's Children: An incredibly detailed fantasy sim, where you can explore, free-form role-play, or hatch your own baby dragon from an egg :)
Babbage Square: The new Victorian Steampunk-themed sim, where creative residents build amazing structures and a new society
Bedrock: Come check out the home of the Flintstones at Bedrock, theres a disco, many games, and a 9-hole miniature gold course
Better World: Displays on water habitats, Peace Tiles, Camp Dafur, and Peaceful Tomorrows; learn how we can make the world a better place
Black Swan: Follow the path around this sim full of famous sculptures and beautiful scenery; from the Rezzable group
Caledon: The Independent State of Caledon, a Victorian-era group of 10+ sims where the tenants have built some amazing period buildings in a well-planned community
Caledon Moors: Explore the darker side of Caledon, home of the Caledon Castle, Cavorite Mineshaft, and a host of haunted places
Caledon SteamSkyCity: A Caledon Victorian Steampunk sim in the sky (steam-powered, of course), with the usual assortment of unusual shops and homes
Carnival of Doom: A carnival full of rides, exhibits, and ways to die ;P Another great sim from the Rezzables
Cathedrals of SL: Tour 3 cathedrals in SL - Darkwood, St. Guilhem, and St. Paul's Cathedral
Cave of Doom: A labyrinth full of creative ways to kill yourself; check it out if you ever get tired of your Second Life ;P
Chi: Beaches, mountain, and volcano; come to relax, meditate, or surf the great waves
Clock Island: An artistically designed Japanese sim about clocks and numbers; includes a mystery where you search for clues around the sim
Coca-Cola Virtual Thirst Pavilion: Coca-cola is sponsoring a contest in Second Life to design a vending machine that dispenses the Coke experience; they have a pavilion where you can see some sample machines
Damania: Amazing buildings, beautiful sculptures, and bumper cars in this furniture store sim
Devil's Labyrinth: A huge haunted house complete with puzzles, mazes, and different outcomes! Amazing details and 3 completely different sections!
Devils Moon: Cyberpunk sim featuring a cool reflection effect on the streets (buildings are reflected off the water on the ground); home of Abranimations and ALICE the talking computer
Dive World: Free diving equipment, information on RL diving, and explore beautiful underwater areas in a sim dedicated to underwater diving
Elf Circle: A slice of Middle Earth, where Elves, Dwarves, and other fantasy creatures roam; a set of 5 sims with a common Elven theme
Enel Park: Learn about green power from an Italian power company: see demo areas, race a hydrogen car, and enjoy an energy drink...
Escapade Zoo & Safari Park: A complete zoo and wild animal park (along with a garden for Tinies), perfect for some monkey business
Governor Linden's Mansion: The oldest home in SL is now a historical site; check out the basement for a bit of SL history
Great Second Life Railway: Ride the train through a number of sims in the northern part of the mainland in SL; catch the tug boat to continue your journey
Great Wall of Second Life: An SL historic landmark wall that stretches across 14 sims!
Greenies Home: A giant (sim-sized) house taken over by tiny green aliens; see what it's like to be the size of a mouse while exploring the house
Gypsy Moon: Explore a hidden gypsy-themed moon with unusual colors, beautiful details, and secret romantic spots
Info Island: An entire sim of information, from a general interest library to medical and many other academic resources.
Inspire Space Park: A popular hangout with a space theme, with lots of poseballs, a club, spaceships, and even floating poseballs ;)
International Spaceflight Museum: Lots and lots of rockets, and even has a rocket ride that takes you to the space station and beyond! Definitely an SL must-see!
Isle of Tranquility: A pretty island with a treasure hunt that leads your thru the sim, including all the cool underwater places; highly recommended for mermaids :)
Isle of Wyrms: Like it says in the Search description, "Here be dragons"; this is where you can meet and talk to dragons, and maybe become one yourself
Ivory Tower Library of Primitives: Explore the great mysteries of the prims and all the shapes they can take on, displays on all the ways you can torture a prim to get the shapes you need
Kasteel Verloren (Verloren Castle): A grand sim-sized castle nestled in the Bavarian (German) sim of Verloren, with a beautifully decorated and detailed interior
Kowloon: A Japanese reproduction of Kowloon's Gate based on the Playstation game, this sim has amazingly detailed icky textures, tasks for you to perform, and lots of alleys to make you totally lost!
Linden Village: Come see where the masters of Second Life live - the home of the Lindens; grab a notecard, check the calendar, and meet a Linden inworld during their office hours to hear the latest gossips
Literature Factory: A fully automated factory with robots creating words, which are assembled into literature. Job positions available for robots :P
Luskwood: The furry community sim, featuring a rich community, event areas, and furry AV's for sale
Mag SL Toyko Japan: The sims of MagSL are where the real Japanese crowd live and hang out in SL, come get a taste of Japan :)
Metabirds: A group of Japanese residential/commercial sims, with a detailed train system, cool stores, and beautiful common areas
Mill Pond: A residential sim with pretty lake, a nice tavern, and coffee shop; perfect for meeting someone for a friendly chat
Mystery Isle: A replica of New York in the 1930's with music and hosting interactive murder mystery
Nagaya: A modern Japanese-themed town, its full of...well...Japanese things
Nakama: Dedicated to Japanese anime, with 4 different areas each representing a different form of anime, along with shops and anime fans
Neufreistadt: Modeled after a walled Bavarian city, Neufreistadt is the seat of the Confederation of Democratic Sims, one of the only active government systems in SL; and also know for its sites and fog
Nexus Prime: A cyberpunk city based on the world from Blade Runner; one of the oldest sims in SL, with a rich history of development
NOAA: U.S. National Oceanic and Atmospheric Administration's sim, with several great interactive exhibits! Prepare to get wet :P
October Country: Its always Halloween here; come to The Haunting Hour and listen to scary radio shows from the 1940s and 50s with fellow residents, or explore the creepy sim...
Olympia's Land of Weirdness: Come see the weirdness in this old SL neighborhood in the Green sim, along with some interesting stuff on nearby plots
Particle Laboratory: Displays and information on particles effects in SL, and all the ways you can bling, poof, explode, or fog things up
Pomponio Volcano: A large volcano spanning the border of 4 sims; with planned eruptions coming soon
The Pond: A piece of Australia in SL, built by Australian telecom company BigPond for its customers, its a great place to mingle with Australians and race motorcycles; bring your Australian translator :)
Pot Healer's Adventure: Play a free adventure game built right into SL in a gorgeously built sim; with game objects and ability to save your game!
Privateer Space: Explore a huge outer-space themed sim, complete with your free space suit and space ship; lots of things to see and even a puzzle to solve
Riverwalk: A well-built outdoor art museum, garden, amusement area, and community center; take a swan boat tour with a friend, watch the fireworks, or just wander through the gardens
Saijo City: A damaged-enabled futuristic cyberpunk city, with some cool music thrown in
September 11th Memorial: A memorial lovingly built to remember the 2996 people lost on that day in 2001
Shinagawa: Detailed reproduction of a Japanese Heian era palace
Silent Hill: A town based on the movie of the same name; very spooky place, with sounds that will make you jump out of your chair
Silverscreen: A sim for promoting movies, with free give-aways, art and shots from the movies, and background info; started with the movie "300"
Spaceport Bravo: A new addition to the International Spaceflight Museum, with new models and party area :)
Sploland: A sim full of science-related exhibits and curiosities; where the science guys seem to hang out and party (beware the Cult of Pi! :P)
SS Galaxy: A cruise ship 3-sims in size, featuring 2 residential sims and 1 commerical sim with many cruise-ship type activities
Steelhead: A Western-themed residential community, with weekly events and monthly balls; great place to socialize and join in a community
Stockton Springs: A quiet little small town in SL, with beautiful texture work, a town center, wedding cathedral, drive-in, and even a trailer park
Stratos Legend: A pre-historic sim full of dinosaur bones in amazing detail!
Suffugium: A cyberpunk sim where Big Brother is watching from everywhere
The Future: Home to the Crooked 4-Dimensional House, a cool transportation system, and interesting prim structures.
Thursday's Fictions: Extension of an interactive fantasy/dance movie, with cool effects, erry sounds, and really makes you think about life
Toxic Garden: A garden sim full of ways to die...just try and stay in the sim to explore this interesting place :P
Treasure Island: Pirate ships and adventure! A sim with large buccaneer ships and pirates' hideaway
Verloren Castle (Kasteel Verloren): A grand sim-sized castle nestled in the Bavarian (German) sim of Verloren, with a beautifully decorated and detailed interior
Victorianna Castle: Self-proclaimed as the "Most Beautiful Castle in SL", its like a gigantic beautiful torus sculpture; see the amazing things that can be done with prims!
Wastelands: Post-apocalyptic (like after a few nukes) residential sim, where a bunch of creative residents build their survival homes in the wasteland
Wastelands-The Great Fissure: Part of the Wasteland group of Post-apocalyptic themed sims; its a big hole in the desert with alots of interesting resident-built stuff around it
Winterland: Bedford Falls from "Its a Wonderful Life" re-created in SL, complete with main street, the bridge, and you can even fall thru the ice ;P Open during the winter holiday season :)
Wizard's Alley: A reproduction of Diagon Alley from Hermoine Granger (I mean Harry Potter :P) series of books