This magnificent natural sandstone bridge is one of the largest in the world and is an iconic symbol for Lake Powell.

An out-of-the-way wildlife haven with a rich and storied past of harboring thousands of fugitive slaves, or "Maroons" during the mid 1800s.

The tallest waterfall in West Virginia.

The warmest cave in the Ozarks features two seemingly bottomless lakes.

Recently celebrating its 25th anniversary, the garden opened in September 1997 to celebrate the men and women who have had the greatest impact on Key West.

A difficult trail leads to interesting ruins in a remote canyon in the Toiyabe Range.

Even though some of the buildings date back to the Victorian era, this research institute is still involved in cutting-edge astronomy research.

The oldest arched-covered bridge in Virginia has truly withstood the test of time.

This former fire tower is now a rustic observatory that offers amazing views of eagles, hawks, and the Appalachian Mountains.

This nature mural exists to protect the surrounding environment and its own canvas from destruction.

The “Grand Canyon of Maine” is a three-mile gorge full of striking geological features.

The Catlins region has a bounty of breathtaking waterfalls, the best is arguably Koropuku Falls—a majestic waterfall with an enchanting bush walk.

This old museum contains dozens of detailed miniature ships and buildings.

The highest waterfall between the Rockies and the Appalachian Mountains.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

Some believe that the artist behind this whimsical statue inserted his own likeness as a way to discreetly flip the bird.

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

See four top-secret US spy aircraft of the Cold War era, including the legendary SR-71 Blackbird and the A-12 Oxcart.

These hilltop ruins of a forgotten Buddhist monastery flourished in Antiquity from trade with the Roman Empire.

This coastal port saw one of the most significant battles of the Civil War.

A large, remote national monument highlights the typical geologic structure seen in Nevada.

The second-largest giant sequoia in the world.

This colonial cabin is the oldest building in High Point, built by one of the first settlers in the area.

A six-foot pair of socks hangs from a drawer of the world's largest bureau.