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

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

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

Ancient cliffs resembling a kilt on Scotland's second largest island emit an entrancing sound.

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

360° views of the city plus five floors of optical illusions and hands-on science.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

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

17th century streets hidden under Edinburgh were once a breeding ground for the black death.