Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

Atop this former dutch railway office sits an interstellar work of art.

The tallest mountain in mainland Netherlands isn't actually very tall.

This striking memorial is one of Estonia’s most controversial Soviet leftovers.

This charming Latvian lane doubled as Baker Street on the Soviet Union’s version of Sherlock Holmes.

This obscure walkway links Edinburgh’s Old Town with one of the city's prime vantage points.

This century-old grotesque has a mysterious history and may not actually be a rabbit.

Twelve sweet, nutty, life-sized statues are housed in this second-story shrine to almond paste.

The telescope that discovered Neptune.

Be it nature, art, or abandoned military architecture this eclectic German "museum" has you covered.

Every half hour the eye-rolling clock face sticks out its tongue to mock the good citizens of Koblenz.

The NASA scientists behind Apollo 11 started out developing Nazi weapons at this abandoned German rocket factory.

A stunning two-story timepiece within a medieval Brick Gothic church.

Hitler's bleak vision of relaxation still stands as a mostly abandoned 10,000-room resort complex.

The last bastion of Roman presence north of the Alps looms over a German town.

Executed in 1401, Exhumed in 1878, Stolen in 2010.

The industrial monstrosity known as Bagger 258 is a colossal mining machine built in the DDR - but now left for dead in a German field.

A 12th-century fortress containing some of Berlin's oldest buildings.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

The fishing boats that moor in this small lagoon enter and leave through a tunnel to the sea.

These lesser-known Maltese catacombs date back over 1,700 years.

This prison on the Maltese island of Gozo is almost 500 years old, and they have the graffiti to prove it.