The ruins of the largest gladiatorial school in Rome are largely hidden under modern streets.

The only remaining arch of the oldest stone bridge in Rome stands in the middle of the Tiber.

Colorado’s most beloved glacier is an imposter.

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

This open-air reconstruction of an Old West town, a cross between a theme park and a museum, provides an immersive historical experience.

In the 1950s, two women saved this grand theater in the Colorado mountains from demolition.

This notorious dive has been serving up both kinds of spirits since 1879.

One man’s passion for gas stations is on display along the Rio Grande in northern New Mexico.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

This innocuous New Mexico storefront was once the secret jump-off spot for Manhattan Project scientists.

The oldest continuously occupied public building in the United States.

This giant pocket watch is the third iteration of a local landmark that has been standing just off the Santa Fe Plaza for over 100 years.

One woman's UFO-themed campground, complete with self-built energy vortexes, UFO-themed weddings, and magic bushes.

Colorado's oldest church is now home to the largest handmade adobe labyrinth in the world.

An Egyptian-revival style film house in Boise, Idaho.

The Lincoln Memorial has inspired many, even though a word on the inscription appears to be spelled incorrectly.

Sip creative cocktails in the former vault of the Riggs Bank.