Remnants of cells from the most notorious London prison may lie in the basement of a rare Victorian Gin Palace.

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

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

340-foot statue built to honour the Heroes of the Soviet Union.

The largest catacomb system in the world.

Come stay at a live-in art installation.

Terrifying derelict military hospital once housed a recuperating Hitler.

The final resting place for the remains of 143 Habsburg royalty.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

The beautiful baroque library of the Hapsburg empire.

The house that took a plunge into the facade of a museum.

Baroque celebration of the end of the Great Plague of Vienna.

Macabre museum devoted to historical Viennese murders.

The former private quarters and office of Dr. Sigmund Freud now hosts a museum housing the works of the founding father of psychoanalysis.

Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons.

This former insane asylum now holds a pathological anatomy museum.

Slaughterhouse Five opens its dank doors to fans of Kurt Vonnegut.

Silent memorial, using bone conduction to take people back to the Dresden Bombing of 1945.

A museum of alchemy and a basement laboratory all housed in an ancient building in a Gothic tower.

Two stunning 17th-century libraries and a cabinet of curiosities.

Monument to a suicide protesting the Soviet invasion.

Massive installation of Europe's negative stereotypes.