This ancient hydrological marvel is now the base of a modern outdoor cinema.

An often overlooked ancient site in downtown Athens with substantial history (and nature).

The oldest continuously operating pharmacy in Europe.

Spend your honeymoon where the Devil had his wedding.

Launched by Napoleon's soldiers more than 200 years ago, a cannonball remains embedded in the tower wall.

If you visit the burial place of King Frederick the Great, you'll likely find a couple of potatoes sitting on his tombstone.

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

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

One of the largest numismatic collections in Europe fell victim to a huge theft.

This monumental work of art symbolizes the coming together of a previously divided city.

This watchtower once presided over the Berlin Wall.

Berlin's old airport.

This World War II bunker now survives as a documentation of the Nazi regime and war crimes.

Gardens representing parts of Asia, Europe, and the Mid East are tucked away among the Soviet-style buildings in East Berlin.

An abandoned swimming pool decays on the outskirts of Berlin.

A museum specifically dedicated to the Trabant, one of the iconic automobiles of the GDR.

A plaque marks the former home of Käthe Paulus, an aerial acrobat who invented the modern folding parachute.

For more than 170 years, this family-run bakery has been serving Berlin’s best Baumkuchen, or “tree cake.”

Dedicated to the European Sinti and Roma peoples murdered during the Holocaust.

You've probably seen these distinctive orange-tiled columns on the big screen.

A replica of the Liberty Bell rang daily from West Berlin's City Hall throughout the Cold War.

This concrete residential area doubles as an open-air gallery.

After a nearly successful attempt on Hitler's life, the conspirators met their fate in the courtyard of this Berlin building.

A museum in the building where Nazi Germany signed its surrender tells the story of World War II from the Soviet perspective.