The abandoned funicular tunnel was a secret base for the BBC during World War II.

Banksy's image of a naked man dangling from the window of a sex health clinic.

17th-century merchants in Bristol nailed their deals by placing money on these pedestals.

The unusual clock on this 18th-century market building has an extra minute hand for "Bristol time."

The Bristol Camera Obscura housed in an ancient windmill.

A tribute to an explorer and naturalist often overlooked by history.

This marine reptile was discovered by one of the 19th century's greatest fossil hunters.

A quiet memorial to those who died saving others in the heart of the City of London.

One of the figures in this Celtic sculpture continues to puzzle archaeologists.

This Viking gravestone carved in a rare runic style was dug up from a London churchyard.

The gigantic skull of a long-extinct species that once roamed the forests of England and Ireland.

It's a mystery why these remains were found with no traces of their bodies in sight.

Drink your espresso at a Victorian-era urinal in this underground-restroom-turned-coffee-bar.

A collection of comics, graphic novels, animation and caricatures devoted to exploring this often overlooked art form.

This London marker celebrates the spot where the world-famous English band was founded.

England's foremost purveyor of funeral furniture hasn't changed a bit since the 1960s.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

The church is gone, but the graves and legends remain.

Where Aleister Crowley attempted to seize the Hermetic Order of the Golden Dawn in a mask and a kilt.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

This impressive collection of rare books on ancient mysticism inspired author Dan Brown.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

The history and future of cannabis.