Yellowstone National Park sprawls over an astonishing 2.2 million acres of wild landscape.
Yosemite National Park is recognized for its grand waterfalls, towering sequoia trees, deep valleys and vast wilderness area.
Zion National Park includes mountains, canyons, buttes, mesas, monoliths, rivers, slot canyons, and natural arches.
Sequoia National Park is famous for its giant sequoia trees, including the General Sherman tree, the largest on Earth.
Glacier National Park is home to pristine forests, alpine meadows, rugged mountains, and spectacular lakes.
Joshua Tree National Park is characterized by rugged rock formations and stark desert landscapes.
Mammoth Cave National Park is home to the world's longest known cave system.
Bryce Canyon National Park, famous for its spectacular crimson-colored hoodoos, spans over a massive 56 square mile area.
Arches National Park features more than 2,000 natural sandstone arches.
The National Mall is a large, open park located in downtown Washington, D.C. and surrounded by significant national landmarks like the U.S. Capitol and the Washington Monument.