This former football stadium seems almost abandoned but is still in use by the next generation of Scottish sports stars.

Glasgow’s piece of the patron saint of love.

The elaborate clockwork contraptions in this Scottish gallery create small worlds of whimsy and horror.

These rusting, skeletal structures are monolithic monuments to Glasgow's industrial past

The secret wartime bunker built on the platforms of an abandoned Tube station.

Children's hospital in London that operates on royalties received from Peter Pan, which J.M. Barrie signed over in 1929.

Museum dedicated to the UK's first charity for abandoned children, with keepsakes of the mothers who left them behind.

The pioneer of psychoanalysis spent the final year of his life here, still seeing patients on that famous couch.

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

This small museum in a former church crypt contains artifacts of the Elephant Man, Jack the Ripper and Florence Nightingale.

A makeshift shrine to the late rock star is still kept up on the nondescript façade outside 1 Logan Place.

An incarceration museum on the spot of possibly the oldest prison in England.

The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

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

Banksy gives themself artistic license with this piece of London street art.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

A kaleidoscopic warehouse-maze of handmade neon signs.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

A brush maker used his factory to protect blind Jews from the Gestapo.

This World War II bunker now survives as a documentation of the Nazi regime and war crimes.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.