One of the most spectacular canyons in the world.

Single runway interrupted by a busy road that cuts across its middle.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

Founded as a refugee camp, now a popular tourist spot.

Crumbling necropolis set high above Fez.

Traditional 11th-century outdoor tannery.

Mosaics, storks, and brothels—this ancient city has it all.

This psychedelic tromp l'oeil seems to be beckoning drivers to crash into a wall.

"Not too many people can say they've had a nuclear bomb dropped on them, not too many would want to." — Walter Gregg.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

These pretty kitties killed and ate as many as 135 railway workers.

Dublin's "Dead Zoo" serves as a window to Victorian museum design.

A corkscrew-shaped barn in Ireland.

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

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.

The breadfruit-adorned final resting place of the infamous Captain of the HMS Bounty.

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

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

Hidden behind a wall for decades, this masonic lodge was only rediscovered during renovations.

English antique dealers with a taste for the unusual.

The quiet field that inspired one of the most famous songs of all time.

An unusual round church in London with a Templar past.

London's smallest police station is barely the size of a phone booth.

A naturally mummified 2,000-year-old man.