This bakery and museum offers tours of the tastes and mythology of Aachen's signature spice biscuit—just don't ask for the recipe.

A medieval gate once used as a prison and how home to a city museum.

A ruined castle stands atop a hill surrounded by dragon lore.

This mine is home to the largest man-made hole in Europe.

This temple to the sturm and drang of Richard Wagner contains a dragon's cave and reptile zoo full of living "dragons."

This mysterious pig iron pillar does not rust, despite being weathered by the elements for centuries.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

This small condiment museum makes all manner of mustards with a 200-year-old mill.

A historic fire call point.

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

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

One of the world's heaviest musical instruments towers within a popular urban park.

The skeletal frame of a decommissioned gas-pumping station offers breathtaking views of greater Berlin.

Tiny memorials honor individual victims of the Holocaust.

A monument to the man who almost killed Hitler.

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

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

A heavily politicized roundabout discussing the state of a heavily politicized country.

This colorful and quirky set of pegasus sculptures celebrate the works of poet Zbigniew Herbert.

In the summer, the area around this sculpture transforms into a vibrant concert venue.

This bell stars in a tragic love tale and is said to make wishes come true.

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

The Polish capital has had a deep connection to its guardian mermaid for almost a millennium now.

A menacing statue of this mythical creature can be seen at the legendary site of the monster's lair.