"Stairs of the Turks", a chalky white cliff eroded conveniently into stairs, allowing for easy pillaging.

Windblown rock formations in an ancient Roman quarry.

This weird, elephant-shaped rock also hosts two ancient tombs.

Stalactites and stalagmites in a beautifully lit cave.

Five candy-colored villages on the Italian Riviera.

Massive galleon from a box-office bomb docked in Genoa.

This cathedral hides a sculpted dog that determines your fate and an unexploded shell from World War II.

Two stone columns flank the grand Venice square, but there were supposed to be three.

This memorial to local World War II heroes is slowly being reclaimed by nature.

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

The site of a concentration camp where inmates were made to take part in one of the largest counterfeiting operations in history is now hauntingly empty.

This giant, 83-year-old ship elevator is an engineering feat to behold.

An abstract and eyecatching clock/fountain is the centerpiece of this little-known German city.

Explore the complex ecology of this multifaceted nature preserve by riverboat.

It's always summer at the beach inside this former airship hangar.

This incredible stone temple is a monument to death, victory, and fantasy architecture.

Terrifying derelict military hospital once housed a recuperating Hitler.

The "Prussian Versailles" that is as glorious today as when it was built.

A quaint Russian village in the middle of a German metropolis.

Germany's Glienicke Bridge has a shady history of clandestine meetings, espionage, and spycraft.

This Berlin island is home to a flock of free-roaming peacocks, as well as a historic ivory folly.

Someone loved this song enough to carve all of its lyrics onto a tree trunk in a Berlin park.

Gardens representing parts of Asia, Europe, and the Mid East are tucked away among the Soviet-style buildings in East Berlin.

An eerie, derelict amusement park in Berlin.