This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

A historic observatory precariously perched at the "Top of Europe."

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

Go surfing on this urban wave, "hacked" by local surfers.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

The footprint of a frustrated devil in Munich's Cathedral.

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

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

A monument to the man who almost killed Hitler.

Berlin's old airport.

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

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

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Pennsylvania’s creepiest roadside attraction is a haunting example of roadside kitsch.

A eight-foot-tall statue resides in the heart of Pennsylvania anthracite coal country.

George Washington, Alexander Hamilton, and Benjamin Franklin all slept at this humble inn.

A fascinating community art piece created by students, teachers, and noted Philadelphia artist Isaiah Zagar.

One of the world's oldest continually operating bookstores.

A former plant in one of the hubs of U.S. steelmaking has been turned into this museum celebrating the history of American industry.

America's oldest drive-in movie theater has been in continuous operation since 1934.

This Art Deco service station has been providing tune-ups and turning heads for close to a century.

Beautiful views of the surrounding hills and birds of prey can be found at this sanctuary.

Don't get it twisted: This is the oldest pretzel bakery in the United States.

A planned settlement in Pennsylvania once housed the aristocratic refugees of the French Revolution.