In the past, Renaissance sex workers were encouraged to entice customers on this bridge.

The pile of books behind the dignified writer gave the statue a most undignified nickname.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

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

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

A sharp sculpture made of thousands of pieces of jagged glass.

This statue of the great Argentinian car driver is located near a famous curve of the Monaco Grand Prix.

This secret coastal village is studded with pastel-colored houses all piled on top of one another.

The ruined doorway is a portal to the building's turbulent and torturous past.

The only surviving choragic monument is a trophy awarded in 334 BC for the winning dramatic chorus.

Where commuters walk through remnants of an ancient Greek necropolis.

An ancient octagonal weather station named for the eight Greek gods of wind.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

These brass bunnies honor the rabbits that dominated the no-man's-land around the Berlin Wall.

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

This concrete residential area doubles as an open-air gallery.

One of downtown Berlin's last reminders of its Communist past.

Berlin's old airport.

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

This curious sculpture represents the perseverance needed to take to the skies.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".