Yellowstone National Park is the world's first national park. President Ulysses S. Grant signed into law the bill to create this 2.2 million acre park in 1872. Seen here, a view of the Sapphire Pool at the Biscuit Geyser Basin in Yellowstone National Park, Wyoming.
Voting for the 8th Wonder has ended. Tune in to GMA Thursday to find out which location is the viewers' choice!
(Norbert Rosing/National Geographic/Getty Images)