This imposing memorial contains the remains of Che Guevara — and 29 other guerrillas who died with him in Bolivia.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

What appears to be an ancient Roman temple is actually a Catholic church.

Fountain where visitors can earn a license to be mad.

The venerated body of a 12th century saint is celebrated each year with the 'Race of the Candles.'

This building features dozens of faces along its facade, although one is a bit chilling.

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.

Two stone columns flank the grand Venice square, but there were supposed to be three.

An extensive collection of reliquaries containing the bones of saints housed in the largest Catholic church in Venice.

Go inside to really appreciate this 500-year-old technological masterpiece.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

In the past, Renaissance sex workers were encouraged to entice customers on this bridge.

Where Venice's gondolas go for a tune-up.

The only museum with its curator—and her pets—buried inside.

One of the most spectacular bridges in Spain spans a narrow chasm that divides the city of Ronda.

A monument to one of the greatest matadors of all time.

Also known as the Temple of Poseidon, this is one of the best-preserved Greek temples in the world.

According to the legend, this structure was built in a single night with the help of the devil.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Beautiful views and Roman-style statues on the Italian coast.

This tiny islet has somehow housed an ancient temple, two monasteries, a church, a fortress, and a restaurant.

Erotic art covers the walls of the largest ancient pleasure palace.

The walls and streets of the ancient city are peppered with penises.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.