Next to the Leaning Tower of Pisa is a cemetery home to ancient sarcophagi and disturbing murals.

This cathedral hides a sculpted dog that determines your fate and an unexploded shell from World War II.

The top of society once luxuriated in this world-class hotel, which continues to impress, even in ruin.

This amazingly well-preserved villa just outside Pompeii boasts rare examples of ancient Roman paintings.

One of the most well-preserved castles in Italy also contains a rare medieval example of a port fortification.

A lover's walk between hilltop towns, decorated with graffiti love notes.

The world's most active stratovolcano is almost always erupting.

Five candy-colored villages on the Italian Riviera.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

These enormous, stern-faced statues greet visitors with lanterns, and sometimes costumes.

This church also serves as a lighthouse complete with a beacon.

A monument to the one-armed geologist who led the first documented expeditions through the Grand Canyon.

These unique "earth pyramid" clay columns can be found in ravines around the village of Tirolo.

Bits of flat terrain surrounded by cliffs make one of the most beautiful landscapes in the Azores.

As the highest point in the Mid-Atlantic range this stratovolcano offers spectacular views.

An ode to a soldier who came to town, fell in love, then began making his own sparkling wine.

A sculpture of a beloved local figure, who tipped his top hat to everyone he passed on the streets of Bratislava.

This tiny chapel withstood a massive mudslide and flash flood.

For over a century, it has been a tradition to raise a flag at the top of this 450-foot sandstone pillar on the 4th of July.

Hidden behind Lincoln's head is a 70-foot-long chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

These falls, sometimes called the "Niagara of the West," still put on a good show at the right time of year.

Where the famed daredevil attempted to launch himself across a canyon in a custom-built rocket.

See just what life was like in a 19th-century prospecting town.

Home to the deepest rift anywhere on Earth.