The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

A 19th-century subterranean reservoir repurposed as a contemporary art cave.

This sublime architectural marvel is a rare example of an expressionist church.

Model Trains and Much More in Hamburg.

This beautifully designed star-shaped fort was the premier defense system of the late 1500s.

Home to the world's oldest functioning orrery.

What was once thought to be a wellspring of unicorn bones is actually just a prehistoric burial site.

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.

A strange rock formation with numerous legends trying to explain it.

This controversial Irish show cave is home to a massive formation known as the Great Stalactite.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

The oldest public library in Ireland.

The block of aged dairy is probably still edible after 2,300 years in a peat bog.

This 165-foot water tower has been supplying the residents of Varel with drinking water for more than a century.

A radio telescope for listening to the stars, based in one of the cloudiest countries in the world.

Every winter, this former planetarium is transformed into a massive, brightly-lit Christmas ornament.

Preserving the research tools, unexpected inventions, and odd collections of generations of college professors.