Retirement home for giant obsolete machines.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

A meteorite-bounded town in Bavaria.

Every hour the doors open to reenact the legend of the heroic mayor who saved his town by drinking a gallon of wine.

According to legend a man pooped out the window of this tower to prove that it was straight.

In this truly magical place, rent hasn't been raised since the year 1520.

The prison where Hitler wrote "Mein Kampf," and 278 Nazis were later executed for war crimes.

A graveyard and memorial chapel for victims of leprosy.

This exclusive resort has completely covered a tiny Balkan island in a 5-star warren of guest rooms.

On top of a resort town as old as the Bronze Age sits an incredible war memorial statue overlooking the beaches below.

One of the world's oldest olive trees, thought to be over 2,000 years old.

A curious cave church carved into the face of a cliff.

A curious little museum dedicated to the furry feline in the cat haven that is Old Town Kotor.

An 18th-century Catholic church converted into an eccentric temple of music and bacchanalia.

You can row a boat through this ancient underground reservoir.

Disused seaplane hangar gets a second life as the jaw-dropping home of Estonia's museum of maritime history.

This Parisian café sticks almost exclusively to an ethos of reuse.

A 19th-century subterranean reservoir repurposed as a contemporary art cave.

The first tunnel to be dug beneath a river, repurposed as an art and museum space.

The courtyard of this small Marinid madrasa is a dazzling example of intricate Islamic architecture.

The other side is actually green.

Romans decided this 16th-century "talking statue" was so ugly, they named it after a primate.

An abandoned Roman salami factory has found new life as an art space home to 200 squatters.

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.