National Parks Top 10

Mind-blowing marvels at America's most beautiful locations are highlighted, from Death Valley's mysterious sailing stones to a man-made mirage in Joshua Tree National Park.

The best hidden gems in and around America's most beautiful locations are highlighted, from sandboarding at the Great Sand Dunes National Park and Preserve to zip-lining in a cave near Mammoth Cave National Park.

Ultimate adventures at America's most beautiful locations are highlighted, from ocean rafting 12-foot waves in Glacier Bay National Park to a 3,000-foot mega slide in the Rockies.

Thrill seekers get in on the action at these heart-pumping attractions across America, from an icy trek across Wrangell-St. Elias National park in Alaska to volcano sledding at Hawaii's Volcanoes National Park.

The most thrilling retreats at America's most beautiful locations are highlighted, from tree bungee jumping at Redwood National Park to rock climbing in Acadia National Park.

Must-see attractions at America's most beautiful locations are highlighted, from a one-kind-of-a-kind hotel outside of Arches National Park to a therapeutic hot springs in Yosemite National Park.

Secret havens and tucked-away retreats at America's most beautiful locations are highlighted, from an oasis in the middle of Death Valley to a skywalk 4,000 feet above the canyon floor near Grand Canyon National Park.

The wildest journeys at America's most beautiful locations are highlighted, from hang-gliding over Yosemite to swimming with dolphins at Volcanoes National Park.

Hidden gems at America's most beautiful locations are highlighted, from jaw-dropping views at Redwood National Park to gourmet grub at a gas station in Yosemite.

Off-the-grid adventures at America's most beautiful locations are highlighted, from a spooky mansion outside of Yellowstone National Park to a UFO watchtower in Great Sand Dunes National Park.