Three small rooms at the back of the “official” church of London's clowns.

Following the trail of an old metro line, this scenic path is haunted by a creepy spriggan statue.

The home studio one of Britain's first independent record producers is also the site of a murder-suicide.

Legends surround this natural rock formation that looks like a Moorish king wearing a crown.

A kaleidoscopic warehouse-maze of handmade neon signs.

A quirky house created entirely out of glass bottles combines a collector's spirit with an artist's flair.

A well-restored ancient archaeology site gives a real feel for life during the Roman age.

This historic pub is a hidden gem for fans of Lewis Carroll.

A monument at Alicante Marina honors a little-known hero of the Spanish Civil War.

This elaborately decorated wall is an homage to the history, beauty and lore of the palm tree.

In this coastal town, the time-honored tradition of reenacting the struggle between the Christians and Moors includes the arrival of the Moorish fleet.

This magnificent market stands as a poignant symbol of the suffering caused by the Spanish Civil War.

A recently restored Shoreditch landmark with ties to Jack the Ripper.

This hospital helped pave the way for treatment that drove down child-mortality rates in 19th and 20th centuries.

This elaborate Byzantine-style building was designed for a not-so-pretty purpose.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

Saint Joseph was said to heal the deaf and blind, but it was a much smaller miracle that got him canonized.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

This surreal-looking tree pruned more than 1,000 years ago is still producing olives for oil.

One of the most photographed buildings in a city known for its Modernista architecture is an abandoned squat.

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

This abandoned mansion has a window for every day of the year, and is a temple for ghost hunters.

This cemetery features modernist statues as strange as its name.

This semi-secret storybook hedge maze is also the oldest garden in the city.