The prototype for all Nazi concentration camps.

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

Daily jousts and dancing barrel makers in Munich's mechanical clock.

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

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

The most visited, and possibly most controversial, museum in Germany.

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

This former Imperial summer home was the venue for a royal slap that once echoed 'round the world.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

Known as the "Valley of the Moon," this Jordanian wadi is one of the most amazing desertscapes on Earth.

An ancient capital city that dates back 3,000 years and harbors many surprises.

This historic rec center in the heart of Israel is a bastion of peace and togetherness.

The only quarter of the Old City not dedicated to a major world religion.

Abandoned bull fighting ring, slowly falling apart in Uruguay.

Museum precariously perched on a massive yellow pillar.

An art museum with an eclectic design and a scandalous past.

Designed to resemble foreign architecture, this mosque-looking structure was used to pump water to a royal fountain.

Solar observatory doubles as a daring display of Expressionist architecture, much to Einstein's chagrin.

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

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

The final resting place of the author who gave us the Little Mermaid, the Ugly Duckling, and many more beloved fairy tales.

Old Danish castle immortalized in Shakespeare's Hamlet.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.