World's first "penitentiary," meant to be humane, drove men insane.

The bronze uniforms commemorate the vital role of women during World War II.

It celebrates a very stinky task and salutes London's fatberg-vanquishing team.

The sculpture of the deceased cockatoo flops atop its personal plinth.

A glorious pub known for a spiteful printing feud and its famous typeface lost—then found—at the bottom of the Thames.

Once home to over 8,000 exiled Hawaiians suffering from Hansen's Disease.

Where else would a linchpin of post-colonial Native American cuisine anchor the menu but a museum?

Though strikingly beautiful, Seattle's other railway station is now largely forgotten.

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

This landmark church concealed a crypt packed with bones that was discovered thanks to the London Blitz.

A quiet memorial to those who died saving others in the heart of the City of London.

An architectural oddity hides in plain sight on this iconic London bridge.

The ritual has been performed uninterrupted for nearly 700 years.

This one has sailed five times as far as Sir Francis Drake's famous ship.

The 2,000-year-old beam is tucked within the pedestrian entrance to the old London Bridge.

This Viking gravestone carved in a rare runic style was dug up from a London churchyard.

The last four extravagant street signs of London's historic banking street.

This overlooked street light once served as a KGB dead letter box.

The library houses an incredible collection of some of the world's most impressive books and manuscripts.

Public access to clean drinking water was an instant hit among the masses.

This eclectic antique shop is home to the taxidermy remains of a celebrity lion named Simba.

The painting on an aptly named street honors the 1980s slasher movie.

The London pub overlooks where the Mayflower was moored before setting sail for the New World.

The signs of a long buried road can still be found hidden beneath a London sewer grate.