The middle finger of modernity.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

Drink wine handed out through a window as part of an age-old tradition.

Museum precariously perched on a massive yellow pillar.

Solitary monument dedicated to the beauty of nature.

The skulls and bones of thousands of soldiers line the walls of this small Italian chapel.

This centuries-old Italian chapel hangs midway down a sheer cliffside.

An eerie, derelict amusement park in Berlin.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

A monument to the man who almost killed Hitler.

A restaurant and observation deck built in a unique broadcasting antenna.

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

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

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

A whimsical bridge adorned with decorative dragons.

Romania's triumphal arch looks out over Bucharest.

Nine centuries-old fortresses guard the walls of this medieval Romanian city.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

This once-derelict building is now one of the most beautiful bookstores in the world.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

This massive underground salt mine now holds a sci-fi theme park in its depths.

Some call this eerie forest of crooked trees the "Bermuda Triangle of Romania."