This demon atop the Notre-Dame de Paris looks utterly bored.

A 400-year-old church covered floor to ceiling in ex-voto offerings from the faithful.

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

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

This tiny museum's sizable collection is jammed into a former underground public toilet.

An encyclopedic collection of mammal penises.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Commonly referred to as the most photographed Victorian home in the United States.

This historic Pittsburgh tennis complex is a rare example of natural red clay courts.

This picturesque stream was up until recently the site of a ten story mountain of slag and sewage.

Meet your friends, marry your true love, or tell your enemies to kiss your butt under this historic Pittsburgh timepiece.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

Despite being stolen multiple times, this civic electrician's street corner Snoopy won't be stopped.

With 3,000 bikes on display, the world's largest bicycle museum includes some famous rarities.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

One of the steepest streets in the United States makes an intriguing challenge for cyclists.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

House of vintage taxidermy and Steampunk sculptures in a quiet Pittsburgh neighborhood.

A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.

These cinderblock farmhouses were actually World War II radar stations in disguise.

A tourist attraction founded around a slumping cabin.

A collection of colorful dinosaurs hidden in an actual rainforest.

This natural marble cave is one of only five national monuments in Oregon.