One of the oldest living oak trees in the Southeast.

The only arched bridge made of stone on the entire Mississippi River.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

A monument to the two U.S. officers killed by North Korean troops while trying to trim a poplar tree.

South Korea's largely symbolic, barely used gateway to the North.

The site of many tense prisoner exchanges across the Military Demarcation Line between North and South Korea.

Home to more than 13,000 pieces of war memorabilia and military equipment.

Secret North Korean passage discovered below the world's most dangerous border.

Examine the impact of the horse on Great Plains culture through exhibits on ranching, rodeo, and the Native American way of life.

Home of a French nobleman's short-lived attempt at raising cattle in the Badlands of North Dakota.

A true roadside icon standing on the same plains that the herds once roamed.

Three legendary, living albino buffalo roaming their pastures for all to see.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

High on a hill overlooking Los Angeles lives a world famous, high-power conical Tesla Coil.

A massive sea stack famous for its appearance in The Goonies.

No one knows how this Pacific Northwest spruce tree came to have so many trunks.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

This long, dark tunnel is open to hikers, but those without lights are known to get confused even on the straight path.

The highest point in Washington state is a volcano covered in glaciers.

This Canadian city is actually two-in-one, even if they only respect the timezone of one side.

Watch bison, elk, and other wild animals up close at this national park.

The arch marks the beginning of the road for northbound travelers.