Part national park, part tropical oasis and part geological masterpiece: any way you look at it, Hawaii Volcanoes National Park is a literal hotbed of activity.
Strap on your sea legs, and hop aboard the nearest watercraft -- Voyageurs National Park is water-based, and some of her finest treasures will only be unlocked by boat.
It may be one of the most impressive and perfect examples of erosion, but what leaves visitors breathless at its edge is the beauty and wonder that we call the Grand Canyon.
The landscape of Mt. Rainier National Park is punctuated by the enormity of the mountain itself -- a 14,000-foot-tall volcano looming over surrounding forests and meadows.
Though the untrained eye might see little more than desert when driving through the Great Basin, a closer look will reveal a land full of flora and fauna that is in a state of constant change.
Formed by volcanoes, sustained by the earth's molten rock layers and teeming with flowers, fauna and vistas galore, Yellowstone is one of America's best-loved national parks.