Ancient Phoenician and Roman tombs carved into the rock overlook the Moroccan coastline.

This stucco building in North Africa was the first American-owned property on foreign soil.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

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

Starting in 1961, Brookhaven National Labs regularly irradiated a section of forest with a canister of Cesium-137 to study the effects of hard gamma radiation on an ecosystem.

The longest continuous underwater road in North America was built at the insistence of Franklin Roosevelt.

The second-largest (of only two in the world) large particle collider is the underdog of experimental physics.

This beloved roadside attraction welcomes visitors with his signature neon smile.

A tree bears footwear on the loneliest road in America.

This sign designates the road that leads to the infamous Area 51.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

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

Officially named the "Loneliest Road in America," this barren stretch of Nevada road offers almost nothing but sky and open fields.

This lovely burial mound is actually a replica that was installed after archeologists excavated the original.

Georgia's highest point was given its strange name thanks to a simple translation error.

This abstract roadside poultry was saved from demolition by outraged drivers and pilots.

The mysterious 855-foot zigzagging stone wall has been baffling people for centuries.

This balancing rock is one of Utah's most unusual geological formations.

These tall, red sandstone pinnacles outside Moab are often forgotten amid their more famous neighbors.

The largest wildlife crossing in Utah allows local fauna to safely traverse the six-lane Interstate 80 at Parleys Canyon.

At this gas station in the middle of the desert, a convenience store has been carved directly into the rock.

The location where the iconic movie character declared it was time to go home.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

This simple, broken column marks the final resting place of one of America's most famous explorers.