Bison graze along a river as steam rises from geysers in the background of Yellowstone National Park. Yellowstone is home to a variety of wildlife including grizzly bears, wolves, bison and elk. The park's most famous attractions include Old Faithful and other amazing geysers as well as hot springs and lakes.
Voting for the 8th Wonder has ended. Tune in to GMA Thursday to find out which location is the viewers' choice! (Douglas C. Pizac/AP Photo)