The self-proclaimed gateway to the Extraterrestrial Highway.

The unique circular corral belonging to the “Cattle King” of Oregon.

US-50 in Nevada is known as "the Loneliest Road in America," but this earlier iteration of the route is even lonelier.

Sacred Buddhist home of some spiritual monkeys.

At the base of Steens Mountain resides an otherworldly desert.

A haunted hot springs hotel that went from healing retreat to asylum before it was restored.

In the middle of a remote desert town is a surprisingly opulent hotel.

A black cat protests the City Guild in Riga's Old Town.

The oldest housing complex in Riga is a mini timeline of architectural trends.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Most-visited and most-photographed slot canyon in the American Southwest.

An eatery for UFO seekers on the Extraterrestrial Highway.

Oh, just a motel on the edge of the desert decorated with thousands of clowns conveniently located next to an abandoned graveyard.

There's nothing creepier than a cemetery next to a clown motel.

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

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

Despite its name, this route in southern Utah offers a heavenly day trip.