National Parks and Preserves

Old Faithful, Yellowstone National Park

Gates of the Arctic National Park and Preserve

Serengeti National Park

Merced River, Yosemite National Park

Denali National Park and Preserve

Great Smoky Mountains

Grasslands National Park

Ten Thousand Islands

Cliff Palace, Mesa Verde

Game Preserve in Kenya

Asiatic Lions

Great Barrier Reef, Australia

Mauna Loa Lava Flows