This prison on the Maltese island of Gozo is almost 500 years old, and they have the graffiti to prove it.

This unique building in the main square stands out among the city's typically Baroque architecture.

This Stone Age solar temple aligns with the sun on each equinox and solstice.

A plaque hangs near the execution place of the Scottish Independence leader famously depicted in "Braveheart."

One part local history, 99 parts gruesome haunted house.

Heralded as the oldest statue in London.

The floor of this spectacular Baroque sanctuary is covered in memento mori.

A dream-like maze full of strange art, surreal spaces, and fantasy landscapes to get lost in.

A museum-like shop that has been producing clogs, brushes, and ropes for nearly 200 years.

A hidden path at the National Theatre lets you look behind the scenes of the latest productions.

A masterpiece of Art Deco architecture hidden in plain sight in West London.

Above an abandoned Underground station, this charming bookstore is home to strange antiquities and literary works.

This inn of the court provides a fascinating window into London’s legal and architectural history.

A secluded green oasis amidst the towering skyscrapers, bears an unusual moniker that reflects one of the city's oldest guilds.

A museum that chronicles the interesting and often dark history of the London docklands, once one of the major trading ports of the world.

A wonderfully preserved example of London's 1960s-style high-density, low-rise public housing.

Legend has it that seven Anglo-Saxon kings were coronated on this stone, located in the appropriately-named town of Kingston.

The bridge is a secret gallery of discarded gum that has been transformed into miniature masterpieces.

A boutique perfumery fashioned to look like a Victorian-era shop.

The Art Deco artwork depicts gilded carriers of deadly illnesses.

An architectural oddity hides in plain sight on this iconic London bridge.

This coffee shop lies hidden beneath a historic church.

This long-hidden space above Westminster Abbey now displays the battle gear of the legendary King Henry V.

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