Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

This abandoned ironworks was once the most important military supplier in America.

See massive fossils that are over 200 million years old in northeastern Arizona.

Why have you never heard of the second most popular tourist site in New York?

The oldest place in Hartford is a cemetery with thousands of bodies stacked beneath the grass.

A battle between nature and architecture in the Cambodian jungle.

Yes, this monument is aware that it is about 20 miles away from the actual center of the United States.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The last physical evidence of the Lewis and Clark trail is one of their autographs etched into this giant rock.

The only road through the heart of Glacier National Park.

Near-constant high winds deform the trees on Spruce Knob, the highest point in West Virginia.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

The world's longest known cave system.

Berry Gordy Jr.'s old home was the original headquarters of Motown Record Corporation.

Heron, whitewater rapids, and urban industrialism all add to the beauty of this concrete nature walk.

This too-low North Carolina railroad trestle is still a notorious big rig executioner.

A 56-foot tall statue of the god of fire looks out over Birmingham, Alabama.

The highest point in Texas is capped by a big silver pyramid.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

The grandson of a Kiowa chief created what has become the iconic symbol of a city on the Plains.