A celebrated bandstand at the center of what was once the worst slum in London.

Museum celebrating the history of computers, especially their role in codebreaking.

The deepest metro station in the world.

One of the most popular megalithic sites in Ireland stands as a humbler version of Stonehenge.

An unsettling shrine dedicated to the ravenous beast that prowled 18th-century France.

Rare and wonderfully wormy cadaver art captured in brass for centuries.

A rotting air force base is now home to rare birds and scarce plants.

A unique collection of Soviet military artifacts lies hidden away in a disused train, in the unrecognized Eastern European republic of Transnistria.

"There's nothing there," and other lies the KGB told us.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

Early Medieval stones sit on display at the beautiful Govan Old Church in Glasgow.

This artistic temple brings together multiple architecture styles, but is only an example of one.

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

Giant, friendly pelicans in Central London, the most unlikely of places.

A French library that makes sure its love of books is writ large... giant in fact.

Goethe's "Faust" was inspired by these rock formations known as the "Devil's Pulpit" and "Witches' Altar."

A subterranean house of worship carved right out of the bedrock.

Luxurious hotel designed to stir the imagination of its many visitors.

This ancient Irish religious site is covered in ancient carvings, many of which have barely aged.

These medieval tunnels provided water to the city above through centuries of civil war and plague.

This insurance company building reminds customers that witches, bears, and gnomes are out there, best be insured.

The history of radiation is on safe display at the foot of a radiation science laboratory.

A medieval fresco which reminds visitors that death will come for us all.

A military museum, art park, mausoleum, and architectural oddity all on one fascist's estate.