The world's largest underwater restaurant is submerged off the southern tip of Norway.

A secret door leads to this cozy dive that sells only “milk.”

The whiskey producer's archives includes a historical list of infractions committed by and associated penalties exacted upon employees.

Since 1887, this old-school shop has stacked its shelves with extraordinary coffees and teas.

This colorful but controversial ceiling has been likened to a 21st-century Sistine Chapel.

A rare, flower-shaped example of Brutalist architecture in Switzerland.

Large Hadron Collider and the Birthplace of World Wide Web.

Venice's "Island of the Mad."

This centuries-old Italian chapel hangs midway down a sheer cliffside.

The skulls and bones of thousands of soldiers line the walls of this small Italian chapel.

A golden plaque marks the site of the mysterious unsolved assassination of the former Swedish prime minister.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

This striking icon of the disputed Republic of Artsakh caused a stir at a Eurovision Song Contest.

A long-disputed island that Denmark and Canada claim by periodically alternating flags and bottles of liquor.

An elegant chandelier hangs over this ancient sewer chamber, now open for concerts and public tours.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

It appears as if a man is standing behind this giant airport clock, painting the hands in real time.

A bizarre form of natural mummification was discovered in the church of this Frisian village.

Remarkably preserved body discovered in a peat bog.

Two gravestones clasp hands over the religious divide.

Old ships and machinery fill a historic harbor in the city that's home to Europe's largest port.

Four giant movable street lights decorate this modern Rotterdam square.

Lumps of significant stone from around the world surround a flaming monument for peace.

One of the great math minds of the 17th century is underfoot in this 900 year old Dutch church.