UNESCO maintains a list of "World Heritage Sites," which may be of significant natural or cultural value. The Giant's Causeway is one of these, which got me to wondering about the other places on the list. There are a lot! Here's just the ones for the United States, along with the year they were added in parentheses. I've bolded the ones I've personally visited.

Mesa Verde National Park (1978)
Yellowstone National Park (1978)
Everglades National Park (1979)
Grand Canyon National Park (1979)
Independence Hall (1979)
Kluane / Wrangell-St Elias / Glacier Bay / Tatshenshini-Alsek (1979, 1992, 1994)
Redwood National and State Parks (1980)
Mammoth Cave National Park (1981)
Olympic National Park (1981)
Cahokia Mounds State Historic Site (1982)
La Fortaleza and San Juan National Historic Site in Puerto Rico (1983)
Great Smoky Mountains National Park (1983)
Statue of Liberty (1984)
Yosemite National Park (1984)
Chaco Culture (1987)
Hawaii Volcanoes National Park (1987)
Monticello and the University of Virginia in Charlottesville (1987)
Pueblo de Taos (1992)
Carlsbad Caverns National Park (1995)
Waterton Glacier International Peace Park (1995)

Read the full list for the entire Earth here.

Labels: tourism, UN