This inconspicuous pharmacy went down in history as the first gas station in the world after fueling the first road trip ever taken.

Largest illuminated advertisement sign in the world.

This decommissioned nuclear power plant offers tours of its Communist-era control room and reactor hall.

A two-inch thick solid brass rod that extends an astounding one kilometer straight into the earth.

This watchtower once presided over the Berlin Wall.

These abandoned Cold War-era bunkers are now a designated refuge for endangered bat species.

Constructed by forced laborers, this submarine pen is now a museum and war memorial.

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