This tribute to the 16th-century composer is now an unusual shrine to Michael Jackson.

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.

These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.

An iconic photograph from the Spanish Civil War saved this shrapnel-scarred historic house from destruction.

The only urban monument in the world designed by the great surrealist painter Salvador Dalí.

This amazing abuela became a diehard metal fan late in life and an icon of Madrid's '80s rock scene.

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

Commonly acknowledged as the only public monument to the Devil himself.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

A lush indoor jungle fills this bustling Madrid transportation hub.

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.

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

Cozy basement bar sports an inventory of over 2,000 beers.

Amsterdam's Red Light District leaves little to the imagination.

Seven mini rowhouses fill the gap between 54 and 70 Westerstraat.

Museum preserving torture methods from the past.

Cat art as far as the eye can see.

A floating cat sanctuary on an Amsterdam canal.

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

Twisted buildings adorn the banks of the Rhine river.

A Nazi concentration camp and Anne Frank's place of death.

You haven’t properly toured a winery until you’ve slept in an actual wine barrel.

Thousands of flowers create enchanting pink tunnels over the city streets.