Yellowstone National Park sits on top of a dormant volcano and is home to more geysers and hot springs than any other place on earth. Wonders abound at this truly unique national park, from sites like the Yellowstone Grand Canyon to wildlife like America’s largest buffalo herd, grizzly bears, and wolves. Approximately 50 percent of the world’s hydrothermal features are at Yellowstone National Park, creating an effect that makes the ground appear to be on fire. The most famous of all the geysers is Old Faithful, one of the most popular and recognized natural wonders in the United States.