This secret cemetery where no flag is allowed to fly holds the bodies of American soldiers convicted of heinous crimes during WWII.

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

Legend says this cave housed a 16th-century cannibal and his family of 48.

Forgotten jail cells beneath this Scottish town hall are now used for delightfully artful storage.

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

A former fisherman's hut deemed too small for habitation is now a delightful tourist draw.

The dream home of an iconoclastic renaissance man still stands as a monument to his domestically mundane vision.

This New Orleans tree is filled with hidden chimes that produce a carefully tuned melody.

This small Bavarian graveyard is filled with empty graves for German soldiers lost during the World Wars.

An alien church provides much needed silence in the midst of a Finland shopping center.

Amateur taxidermy museum known for its large collection of white squirrels.

Considered the most remote point in the entire world.

The world's largest neutrino telescope searches for secrets of the universe at the South Pole.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

Every year, a Louisiana town remembers a brief Civil War truce inspired by Masonic brotherhood.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

The world's second-tallest flagpole stands proud despite dropping rank.

This "tower of death" has acted as an observatory, a religious hub, and an executioner's lair.

Light still pours into the ruins of this ancient Islamic observatory.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

Where Stoddart and Connolly suffered in the infamous Bug Pit.

Skeletons dressed in extravagant 18th century royal costumes cavort in the aisles of this German basilica.

A Cold War command center is hidden under an idyllic countryside.