A spiral staircase twists to the top of this unusual Czech lookout tower.

This charming wooden church was disassembled and moved not once but twice before settling in this Prague garden.

This spooky statue sits outside a famous Prague theater.

A series of playful yellow penguins share a serious message about the environment.

This Czech church doubles as something of a permanent fashion exhibition for a statue of the Infant Jesus.

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

People have been living in the cave houses on this Italian hillside since the Neolithic era.

Skulls and skeletons are omnipresent in this church dedicated to souls trapped in purgatory.

A dead saint, a deadly poison, and a mysterious holy ooze.

A long-buried ancient ruin unearthed right in the middle of the city.

A single column facing the sea is all that's left of one of the most important temples of Magna Graecia.

An eccentric home in Sicily turns heads on a regular basis.

This amazingly preserved Doric temple was abandoned before it was ever completed.

Tourists to the mountaintop Sicilian town often overlook its ancient fortifications.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Berlin's old airport.

Fantastic stories on a miniature railroad.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.

A blacklight mini-golf fever dream pays tribute to the iconic rock band.

One of the famous Czech artist's lesser-known Prague installations appears to be a glowing fetus affixed to a drainpipe.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

A statue honors the children who fought Nazis in Poland.