This building’s ghostly exterior reflects its former lives as a prison, school, and funeral home.

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 1,215-foot tunnel transports pedestrians beneath the River Thames.

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

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

A vast overgrown cemetery, once known as one of London's "Magnificent Seven."

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

Stunning wetlands ablaze with pink lotus flowers.

A student driver's nightmare.

A hands-off space for graffiti artists to hone and display their skills.

A subterranean ice warehouse that has lain hidden beneath central London for over a century is now open to the public.

This classic restaurant features a gorgeous mirror-clad room.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

A tongue-in-cheek arcade where the games are based on everyday life.

Monasteries on rock pillars, once accessible only by frayed ropes.

An unusual round church in London with a Templar past.

The longest hedge maze in the world.

Since 1874, this macabre collection has developed into a museum devoted to Scotland Yard's mementos of dastardly deeds.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Tokyo’s only Vaudeville-cuckoo clock–steampunk-Victorian curio cabinet time piece.

A Japanese concept restaurant that feels like a party thrown by the monsters in your closet.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

A fiery crater has been burning in the Karakum Desert since 1971.

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