Which national park receives the most visitors in the United States?

Old Faithful is located in which national park?

Which national park contains the world's largest tree by volume?

The Grand Canyon is located in which U.S. state?

Yosemite National Park is located in which state?

Which was the first national park established in the United States?

Denali, the highest peak in North America, is located in which national park?

Arches National Park, known for its natural stone arches, is located in which state?

Which national park spans the border between North Carolina and Tennessee?

Crater Lake, the deepest lake in the United States, is located in which state?