In this Brazilian city, a vertical graveyard rules the skyline.

A patchwork of ruins from various civilizations in one of the world's oldest continually inhabited cities.

Brush shoulders with animatronic Arab leaders made of silicone.

A monumental underground karstic wonderland is also the water source for over a million citizens of Beirut.

Within the Saudi Arabian desert lies a 2,000-year-old ghost town made of stone and mud.

This permanent exhibition of commercial signs aims to preserve the cultural heritage of the city.

According to local folklore, this Roman sepulcher was once a throne for the Devil.

An unremarkable wooden wheel built into the side of one of Rome's oldest hospitals was part of a policy to reduce infant exposure.

Remnants of a 4th-century church with vivid medieval frescoes and ancient sarcophagi hide beneath this old basilica.

A burial vault located under Tiber Island in the middle of the Italian capital.

Charles Dickens was not a fan of the ghastly wall dressings in this 6th century church.

A wunderkammer of curious objects and intriguing art nestled within a hub of ancient Roman sites.

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.

Hanging within this medieval church are the bones of a beast allegedly slain by a fourth-century saint.

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

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

The marble facade hides a little-known medical museum with early surgical instruments and rare copies of canonical texts.

Artistic tombs, monuments, and a beautiful "Hall of Fame" lurk inside this cemetery.

Featuring Zürich's only authentic 14th-century plague doctor's uniform!

A mythically themed self-built sculpture park.

This ossuary is more than five centuries old and is heralded as one of the finest in Switzerland.

For centuries no one knew there were hundreds of bones and precious artwork hidden beneath this Swiss church.

An unusual vending machine designed to support mourners during funeral ceremonies at Zurich's largest cemetery.

One of the most important yet well-hidden museums dedicated to the history of medicine.