Hundreds of drawings left by the land's previous inhabitants remain mysterious.

A Wild West jailhouse that slid down the mountainside.

This comprehensive collection features Native American artifacts dating back centuries.

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

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

Despite a legend that says this highest peak in Oregon was climbed in high heels, scores of people have died on its slopes.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

You might know it as the Overlook Hotel, but the inside is not going to be familiar.

No two pieces are exactly the same at Portland's hippo-themed hardware store.

Believe it or not, this is the final resting place of the man who created the Odditorium.

One of only five observatories in the world built to measure the Earth's wobble.

14th century Norse artifacts in Northwestern Minnesota could have proved a Viking landing before Columbus.

The tunnel that runs beneath this former inn was once a hiding place for enslaved people seeking freedom.

The ravine where Jesse James supposedly performed an impossible jump to evade capture.

One devoted couple has donated multiple recreations of Michelangelo's sculptures to this South Dakota town.

A cemetery housing wild west legends in South Dakota.

Native Americans built this circle of stones, which was used to predict astronomical events.

See the computer’s history revealed over the course of 20,000 years.

Home to the deepest rift anywhere on Earth.

In a dry, neglected cemetery lies the unassuming grave of a soldier vilified in life but celebrated in death.

Toss a Frisbee through the ruins of this Colorado gold mining town.

This Wild West attraction is probably more fiction than history, but that doesn't mean it's not awesome.

The world’s largest combined collection of U.S. and Russian aircraft got its start in a poultry building.

This seemingly charming home memorializes and honors the victims of a century-old unsolved murder.