63 National Parks.
How many have you visited?

Unique fact: Sits atop one of the world's largest active volcanic systems and contains half of all the geothermal features on Earth. The supervolcano beneath the park last erupted 640,000 years ago and created a caldera 30 by 45 miles wide.

Why visit: Watch Old Faithful erupt on schedule and marvel at the rainbow-colored Grand Prismatic Spring. Spot wolves, bison, and grizzlies roaming free, and explore over 10,000 hydrothermal features including geysers, hot springs, and mud pots.

Unique fact: Carved by the Colorado River over 5-6 million years, the canyon exposes rocks that are 1.8 billion years old, nearly half the age of Earth itself. At its deepest point, the canyon plunges 6,093 feet.

Why visit: Stand at the rim and witness one of the Seven Natural Wonders of the World as colors shift throughout the day. Hike to the bottom on the Bright Angel Trail, raft the legendary Colorado River rapids, or watch condors soar on thermals.

Unique fact: Home to Kolob Arch, one of the world's largest natural arches at 287 feet, and cliffs that tower 2,000 feet above the canyon floor. The unique hanging gardens here support plants found nowhere else on Earth.

Why visit: Brave the Angels Landing trail with its chain handholds and 1,500-foot drop-offs for unforgettable views. Wade through the Narrows slot canyon with walls towering above you, and watch the sunset paint the sandstone cliffs in brilliant oranges and reds.

Unique fact: El Capitan is the largest exposed granite monolith in the world, rising 3,000 feet from the valley floor. The park's giant sequoias include trees over 2,000 years old with trunks you can drive through.

Why visit: Watch Yosemite Falls, the tallest waterfall in North America, thunder down during spring snowmelt. Hike to the top of Half Dome on cables, spot climbers inching up El Cap, and stand in awe of groves containing the largest living things on Earth.

Unique fact: The first national park established east of the Mississippi River and home to Cadillac Mountain, where you can be the first person in the United States to see the sunrise from October through March.

Why visit: Watch dawn break over the Atlantic from Cadillac Mountain's granite summit and explore 45 miles of historic carriage roads. Climb iron rungs on the Precipice Trail, feast on fresh lobster in Bar Harbor, and witness the thunder hole wave crashes.

Unique fact: Home to North America's tallest peak at 20,310 feet, so massive it creates its own weather. The park spans 6 million acres but has only one road, keeping most of it true wilderness.

Why visit: Spot the "Big Five" of Alaskan wildlife: moose, caribou, wolf, Dall sheep, and grizzly bear. Take a flightseeing tour around Denali's peak, ride the park bus deep into the backcountry, and experience 24-hour summer daylight.

Unique fact: The most visited national park in America with over 12 million visitors annually, yet still maintains wilderness areas. The "smoke" is actually natural fog created by the forest's transpiration.

Why visit: Witness the magical synchronized firefly display in early June when thousands of fireflies blink in unison. Drive the scenic Blue Ridge Parkway, explore historic pioneer settlements, and hike through ancient forests older than the Himalayas.

Unique fact: Contains over 2,000 natural stone arches, the highest concentration in the world, including the iconic Delicate Arch that appears on Utah license plates. New arches form as old ones collapse.

Why visit: Hike to Delicate Arch at sunset when the sandstone glows brilliant orange against the distant La Sal Mountains. Explore the Windows section, walk beneath Landscape Arch's 306-foot span, and witness geology in action as the desert transforms.