The hallucinogenic center of the ancient world.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

The oldest residential street in Europe also features an optical illusion.

This black cat was actually designed to ward off bad luck.

Does being buried standing up help you get into heaven faster?

One of the oldest remaining Catholic churches in England is home to the hand of a 7th-century saint.

This large, circular tomb is the final resting place of the first emperor of Rome.

This pub boasts a curious history and may have inspired a Dickens character.

This is not only one of the oldest collections in Europe, but also possibly the most beautiful.

The plague quarantine island home to the alleged "Vampire of Venice."

This is the oldest Roman-made bridge in the city still existing in its original state.

The final resting place of one of Germany's most accomplished Renaissance men.

This amazing 15th-century mural remained hidden in plain sight for centuries.

The only remaining arch of the oldest stone bridge in Rome stands in the middle of the Tiber.

The historic villages and towns of Suffolk are filled with wonky wooden beam houses painted an unusual shade of pink. Unknown to many though, this sweet shade has a bloody history.

The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.

The oldest of Venice's plague quarantine stations, designed to keep the medieval city safe from disease.

Originally a leper colony, the island is now an Armenian monastery that's home to an incredible manuscript library and eclectic museum.

Wandering this ancient burial place offers a glimpse of the afterlife in the fresco-adorned tombs of an ancient Etruscan civilization.

A watering hole where the options for seating include a bar, patio, or subterranean cave.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

When it was built in 1929, this historic bridge was the only place to cross the Colorado River for 600 miles.

Inside this church is an obscure piece of art carved by the famous Alice Liddell.

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