A plaque marks the site directly below the mid-air detonation of the atomic bomb over Hiroshima.

This Japanese national treasure was originally built in 593.

An ornate sculpture of an ox in repose marks the former entrance to Nuremberg's medieval meat market, which was destroyed during World War II.

A small but immensely extravagant palace built by the "Night King."

The bears of Bern have been a city highlight for over 500 years.

This equestrian statue of Constantine the Great has been the subject of criticism for centuries.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

Breathtaking and huge 430 year old maps of Italy.

The footprint of a frustrated devil in Munich's Cathedral.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

The fairy tale castle of the "fairy-tale king."

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

This strange sculpture depicts a giant nightmare hare crushing a man to death beneath its colossal bulk.

Amidst medieval and baroque buildings, five human-sized gherkins stand tall.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

This magnificent museum claims to house the cranium of a disciple and the skull of a pope.

A salty red wasteland in Tanzania is a breeding spot for endangered flamingos.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

The monument's pointy aluminum tip has been melted down by repeated lightning strikes.

While seemingly a cruel joke, this bench actually honors an esteemed member of the community who passed away in 2006.