An abandoned tank sits in an empty London lot as a symbolic middle finger to local city planners.

A friendly pub with a sordid past in cock fighting.

The monster at the center of the Darwin Center Spirit Collection.

The final resting place to 300 Victorian-era pets hides inside the city park.

The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

A historic London cemetery now serves as a nature park incorporating gravestones & memorial statues.

A historic house left in "dramatic still life."

Banksy gives themself artistic license with this piece of London street art.

London's smallest police station is barely the size of a phone booth.

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

A special shop catering to the needs of things that go bump in the night, and also helps kids become writers.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

This South London cemetery holds the remains of more than 15,000 people.

The former 1920s mansion of a prominent Catalan developer was used as the Soviet Embassy during the Spanish Civil War, and there is still a bunker below the garden.

Barcelona's historic 19th-century sewers, whose foundations were laid in medieval times, are open to the public for exploring.

A blank headstone topped with a pile of pennies marks the final resting place of the infamous assassin.

A model home in the Medical Examiner's Office in which grisly death scenes are staged to train forensic investigators.

One of the oldest anatomical theaters in the U.S. still in use was once the site of an infamous cadaver riot.

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

George Washington's dentures and Queen Victoria's dental instruments are in the nation’s official museum of the dental profession.

Walk through the history of American pop culture.