Hawaii is the newest of the 50 U.S. states (August 21, 1959), and is the only U.S. state made up entirely of islands.

The Giant Sequoia National Monument is a 328,000-acre (1,330 km2) U.S. National Monument located in the southern Sierra Nevada in eastern central California.

The Grand Canyon is a steep-sided canyon carved by the Colorado River in the United States in the state of Arizona.

Yellowstone National Park, established by the U.S. Congress and signed into law by President Ulysses S. Grant on March 1, 1872, is a national park located primarily in the U.S. state of Wyoming, though it also extends into Montana and Idaho.