This shale formation along the Appalachian Trail once inspired the third president of the United States.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

Time travel with sweets across history at this research-based candy store.

An inspired museum dedicated to the patron saint of enslaved people, inside the cloisters where he lived and died.

A disquieting Aztec sculpture displays hundreds of stone skulls representing the victims of human sacrifice.

Once home to an aristocratic family and a workers' organization, this intricately tiled building now houses a chain restaurant.

The unique collection often goes unnoticed by visitors focused only on the archaeological objects.

This stunning and ethereal mural symbolizes the beauty, unity, and diversity of humankind.

It's believed this golden brick is part of the legendary lost Aztec treasure.

The only castle in North America to ever house European sovereigns.

The last home designed in its entirety by noted architect Luis Barragán owes its existence to an impressive jacaranda tree.

One of Mexico's least-visited archaeological sites is tucked away inside a theme park.

Parking garage where Bob Woodward met Watergate source "Deep Throat."

Mysterious glowing orbs float through the desert night.

Museum mostly in name, and only a restaurant depending on the day, this place could only exist in Marfa.

This is probably not the Target you're looking for.

Not everything is bigger in Texas.

A World War II officers' club features Old West murals painted by German POWs.

Rumor has it the hot dog stand was targeted by two Russian nuclear missiles.

These unusual rooms on wheels are holdovers from the 1960s.

The Pentagon is so large that it was planned like a city, complete with internal highway infrastructure.

At 207 feet, one of the world's longest continuous escalators.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

The flower-shaped temple in Virginia aims to transcend the boundaries of the world’s religions.