Europe's second largest ossuary wasn't discovered until 2001.

Low tide reveals 8,000-year-old rock carvings in Southern Alaska.

A trading post in the North Pole where children send letters.

Upside-down trees serve as natural flower pots in this hanging garden of Alaska.

The king of U.S. high points towers over every other peak on the continent.

A small marionette collection located within the dark cellars of an 11th-century Austrian castle.

Once the home of a hermetic monk, this cave now houses a small church.

This beloved roadside attraction welcomes visitors with his signature neon smile.

A high school astronomy enthusiast designed this model of our solar system to be traversed on foot.

The sculpture's largest spire points directly toward the North Star.

A morbid gateway to an Alaska town prides itself on the hunting history it represents.

North America's first frozen mummified remains of an ice age steppe bison, the 36,000 year-old mummy named "Blue Babe."

Mind-blowing carvings and fantasy ice scenes grace the largest year-round ice environment in the world.

The first Russian Orthodox church in North America and an Alaskan landmark.

Shakespeare has been brought to life in this open air theater for the better part of a century.

A public fountain that spouts "health water" from a nearby spring.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

Macabre museum devoted to historical Viennese murders.

This former insane asylum now holds a pathological anatomy museum.

Sitting beneath an unremarkable residential building is a museum devoted to classic Pinball.

Scenic mount trashmore, Virginia Beach's most curious waterfront still has a couple of secrets.

The risqué mixed-media sculptures are supposedly a metaphor for Czech politics.

Macabre astrological automaton clock dating to the late 1400s.

This strange statue depicts a young boy's body with an adult Mozart's head and a single wing.