Yellowstone National Park (Wyoming, Montana, Idaho) The first national park in the world, famous for its geothermal features like Old Faithful geyser and the Grand Prismatic Spring.
Yosemite National Park (California) Known for its giant sequoias, breathtaking waterfalls, and granite cliffs like El Capitan and Half Dome.
Everglades National Park (Florida) The largest tropical wilderness in the U.S., known for its wetlands, mangroves, and diverse wildlife.
Redwood National and State Parks (California) Home to the tallest trees on Earth, the coastal redwoods, along with diverse ecosystems.
Death Valley National Park (California, Nevada) The hottest, driest, and lowest national park, featuring unique desert landscapes.
Mount Rainier National Park (Washington) Dominated by the active volcano Mount Rainier, with alpine meadows and glaciers.