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

A once-booming railroad left abandoned next to the Quinnipiac River marshes now intersects with a hiking trail.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

These stark white cliffs were spat up by the sea and are slowly being retaken by it.

One man's swirling six-acre monument of stone.

This natural rock "church" might not be a proper chapel but that doesn't mean it's not beautiful.

Known to backpackers as the "Steps of Doom," this walkway carved into the side of a seaside cliff leads to the Roman Tombs.

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

One of the few places to grab a beer in Fez is a former British consulate.

Traditional 11th-century outdoor tannery.

The courtyard of this small Marinid madrasa is a dazzling example of intricate Islamic architecture.

Crumbling necropolis set high above Fez.

This 16th-century Moroccan fortress-turned-armory museum offers prime views of the historic quarter in Fes.

Morocco’s modern capital was once a haven for Barbary pirates, who went so far as to establish a republic of their own.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

Ancient human remains unearthed around the iconic monument.

England's most notorious suicide spot.

One of the few standing Roman lighthouses and a labyrinth of tunnels are a couple of the secrets at this historic castle.

A fortified city, home to a remaining population of five families

World's largest film studio, where visitors tour the decaying sets that litter the harsh desert environment.

An abandoned horror film set sits eerily along a highway through Hollywood's "door to the desert."

Famously misunderstood wonder of the ancient world

Along the most northwestern point in Africa is an ancient cave surrounded by legends.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.