These mosaic designs promise a cure for headaches, toothaches, and colds.

One of the few places where you can visit a cenote and Maya ruins at the same time.

Iconic red and white plaques show the creative names invented to navigate the city streets.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

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

Every equinox this Maya pyramid puts on a spooky ancient light show.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Its sunny hues are believed to have inspired the town's color palette.

The oldest operating roller coaster of its kind, the Montaña Suiza has been thrilling riders since 1928.

César Baldaccini's iconic sculpture of a 40-foot thumb stands tall in La Défense.

This crumbling, graffiti-covered mansion sits tantalizingly within reach of the proletariat who frequent a public park.

Shattered columns and Egyptian pyramids outside of Paris.

An island graveyard with spectacular views of the Caribbean.

A small collection of iguana-infested ruins hides amid Cancún's bustling hotel zone.

This medieval tower is all that remains of the castle where Joan of Arc was held before being burned at the stake.

A French museum of wrought iron.

Lady Liberty's original designer installed a little clone in this French fountain.

The Belgian royal family's private depot now stands abandoned and forgotten alongside the tracks.

Pilgrimage site for star-crossed lovers.

It’s said this crypt was the setting for the tragic finale of the Shakespeare play.

One of the oldest libraries in the world is still operating and contains the oldest existing document in the Italian language.

Not far from the more famous House of Juliet, visitors will find the supposed residence of her lover.

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

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