A mysterious pillar in an ancient burial chamber is said to predict how long you have to live.

This "City of Books" holds a museum, library, and the complete personal book collections of five of Mexico's greatest thinkers.

Public clocks around the city chime with bullfights, cockfights, old railways, and other local traditions.

Fragments of the former temple's lost facade are now displayed in a strange library of stones.

A historic cemetery doubles as a museum containing hundreds of unique tombs sculpted by a single artist.

A fearsome dragon clings to a corner of Munich's city hall.

Bullet holes in the church wall are a reminder of the violence that followed the assassination of a high-ranking Nazi officer.

After being lost for decades, this striking mural depicting the atomic bomb covers the wall of a busy Tokyo metro station.

A beautiful collection of taxidermy birds and rare pomological wax models.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

This embalmed man is one of the best preserved mummies from the Canary Islands.

A display of torture devices used in the Spanish Inquisition and other scourges of medieval Europe.

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

Naturally preserved bodies are eerily staged throughout the crypt in varying poses.

An English explorer's vast natural history collection has the first realistic dioramas of animals staged in their natural habitats.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Dancing skeletal figures pay homage to a medieval mural destroyed during World War II.

An eccentric aristocrat brought these Australian natives to their current Scottish home.

The last four extravagant street signs of London's historic banking street.

Dozens of snakes are housed and worshipped within the walls of this Vodun temple.

This hidden green space is the city's second largest conservatory.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

The crypts are so large they're basically their own underground church.