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

Beautiful Austrian natural history museum with carved ceilings and row after row of ancient taxidermy.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

Macabre astrological automaton clock dating to the late 1400s.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

An abandoned NSA listening post on Berlin's "Devil's Mountain."

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

This "preacher's pulpit" once used for pagan ritual, is home to a new, and dangerous ritual.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

Mysterious craters may have been home to an ancient cult.

3,000 market stands in five former Zeppelin hangars.

A black cat protests the City Guild in Riga's Old Town.

Flamboyant architecture from the turn of 20th century.

These rare statues are one of the few remaining material witnesses to Old Prussian culture.

The site of the first battle of World War II.

Museum dedicated to "the man who moved the Earth."

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

An underground city of salt.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.