Every year the site travelsupermarket publishes the 50 most popular travel destinations and places in the world. The data is based upon the amount of visitors during last year (2011). They divide it into seven different categories. This list below is good if you wish to see the most popular sites in the world or if you wish to avoid them.
Here you will see the three top listings in each category:
Public Places
Times Square in New York 39 200 000 visitors
Central Park, New York 38 000 000 visitors
Las Vegas Strip, Las Vegas 29 467 000 visitors
Heritage
Union Station, Washington D.C. 37 000 000 visitors
Grand Central Terminal, New York 21 600 000 visitors
Notre Dame Cathedral, Paris 13 650 000 visitors
Amusement Parks
Disney World Magic Kingdom Florida, 16 972 000 visitors
Disneyland Park, California 15 980 000 visitors
Tokyo Disneyland, Tokyo 14 452 000 visitors
Market
Faneuil Hall Market Place, Boston 18 000 000 visitors
Grand Bazaar, Istanbul 15 000 000 visitors
Pike Place Market, Seattle 10 000 000 visitors
Seaside attractions
Pier 39, San Francisco 14 000 000 visitors
Tsim Sha Tsui Waterfront, Hong Kong 10 320 000 visitors
South Street Seaport, New York 9 000 000 visitors
Naturals
Niagra Falls 22 500 0000 visitors
Great Smokey Mountains National Park 9 463 538
Museums
National Air And Space Museum, Washington D.C. 8 300 000 visitors
Smithsonian Museum of Natural History, Washington D.C. 6 800 000 visitors
British Museum, London 5 842 138 visitors