An architectural marvel that spans the Arda River, and has stories of a haunted past.

This fortress dates back to the 6th century and is also the site of a controversial abandoned restoration project.

This stunning waterfall is the backdrop to a site that has seen continuous human habitation for 250,000 years.

Beautiful antiques and obscure engineering artifacts trace the evolution of phones from rare luxuries to ubiquitous.

The world's newest astronomical clock is also its most accurate.

The monument honors the mountaineers who were part of Europe’s best anti-Nazi forces.

An artificial hill and apparent calendric structure built in the Early Middle Ages immortalizes a legendary Polish princess.

The giant statue and its model solar system honor the native Pole who declared that the Earth revolves around the Sun.

The many—66 to be exact—faces of the German forest.

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

At one of Berlin’s oldest churches, visitors can place mosaic tiles to help restore a medieval mural.

The entrance to this Frankfurt subway station looks like an old tram car crashed into the concrete sidewalk.

On the highest peak in the Harz Mountains, science and the occult faced off in a failed attempt to turn a goat into a boy.

Learn the fine art of making a centuries-old treat at this hands-on food museum.