Where once there was a train station bathroom, there is now this German burger joint.

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

Cold war icon and onetime "hole" in the iron curtain.

A museum dedicated to a Cold War era sausage.

A fascinating insight into daily life in the Eastern Bloc.

This cheese shop also houses a museum devoted to Dutch dairy.

Tucked in the back of a flower shop, its collection details the fascinating history of the Netherlands's iconic symbol.

The attic of a four-century-old canal house hides a clandestine church.

This local emblem is the oldest and largest dragon tree in the Canary Islands.

This beautifully verdant lagoon is tucked below a massive volcano in a crater atop a black pebble beach.

Visit a surreal landscape so otherworldly NASA actually used it to train the Apollo 17 crew.

Partially collapsed lava tube and cave system complete with concert hall, underground pond, and unique albino crabs.

This magnificent castle grew from a small Moorish fortress, and reportedly inspired two iconic Disney castles.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

Just like in Hollywood, Madrid has also a forgotten walk of fame.

An ancient Egyptian temple in the middle of Madrid, Spain.

A towering monument in Spain has proven to be more labor-intensive than initially planned.

An automaton perched above an classic clock and watch store

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

Among the oldest structures in Madrid, these Moorish walls once guarded the medieval city of Mayrit.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

Follow the original medieval paths that wind through this intriguing section of the city.