This peculiar museum offers hands-on interaction with seemingly intangible principles of mathematics.

These beautiful objects represent beautiful ideas.

This German "living museum" is maybe a bit too immersive.

A Saxony castle houses one of the largest and most outstanding mineral collections in the world.

This platform is now a memorial dedicated to those who were deported during the Holocaust.

Inside this Jewish cemetery is a memorial to soldiers who deserted the German army and were executed.

This watchtower once presided over the Berlin Wall.

To the great disappointment of doomsdayers, this codex merely contains records of the Moon and Venus.

Art installations, derelict railcars, and endangered grasshoppers all call this south Berlin park home.

An officers prison camp believed to be impregnable by the Germans saw over 30 successful escapes.

Now overgrown, these anti-tank barriers from World War II are sometimes called "dragon's teeth."

A rare chance to ride one of the few continuous elevators still in operation.

A historic steam train meanders along one of the most scenic rail routes in Germany's Black Forest.

Shimmering sea-colored mosaics and Jesus statues cover this opulent building.

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

Originally envisioned by King Ludwig II to rival Versailles, Herrenchiemsee's "New Palace" remains half-gilded for lack of funds.

A memorial in the Tiergarten is a reminder of the suffering inflicted on homosexuals by the Nazi regime.

This sprawling Jewish cemetery is one of the largest in Europe.

A fascinating little museum dedicated to the thousands of chemical substances concealed in our food.

An abandoned train station in Munich constructed for the 1972 Olympic games.

The world's tallest church tower reveals a spectacular view to anyone up to the task of climbing the daunting staircase.

The largest brick bridge in the world.

The medieval institution is home to the precious treasure stolen in World War II in one of the greatest art thefts of the 20th century.

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