This monumental work of art symbolizes the coming together of a previously divided city.

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

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

What started as a tongue-in-cheek shrine is now a full-blown museum celebrating "The Hoff" and his longtime love affair with Berlin.

A fascinating insight into daily life in the Eastern Bloc.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

A surreal museum of extraordinary industrial objects.

Offal and flawless onion soup are on the menu at this restaurant that once catered to the workers of Les Halles.

Sip a cappuccino in the historic cafe that introduced them to the United States.

During the summer months, giant teddy bears take over Paris near Les Gobelins metro station.

Noirish green neon marks the location of one of the oldest private detective agencies in France.

These abundant, over-the-top monuments are so widely scattered that they define the entire compact capital cityscape, often leading to jokes about whether there are more statues than residents.

Sip cherry liqueur at a bar dating back to 1840.

An abandoned shopping gallery built during Fascist Italy tucked in the center of Palermo.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

This triumphal 16th-century arched gateway leads to the oldest street in Palermo.

Every inch of this chapel is covered in craftsmanship from across the world.

Behind medieval walls in a corner of bustling Palermo is a breathtaking former mosque once inhabited by a wolf-taming hermit.

This mosaic-lined medieval church was built by the world's first admiral and still holds mass in ancient Greek.

Why a column on the entrance is inscribed with a verse from the Quran is one of Sicily's many mysteries.

Though this bridge was originally built in the 12th century, only one of its 10 arches dates back that far.

Originally built in the 15th century, this well gave the surrounding area its name.

This city square dates back to the Scottish Enlightenment and was home to some of Scotland's brightest minds.

A quartet of brightly colored mythical beasts stand sentry at this gateway.