Architecturally stunning library serves as the hub of Finnish scholarly life and culture.

Finland's oldest astronomical observatory once played a crucial role in seafaring and timekeeping.

This deceptively beautiful island was once home to a German concentration camp and known as "Death Island."

The ruins of this mining boom town stand like skeletal reminders of the settlement's dark history.

The remains of diamond fever taken over by the desert.

There is only one place in the world where the corners of four nations come together.

A public display of prehistoric space rocks is named for the Namibian village where they were found.

An underground city of salt.

The 700-year-old fortress was the site of Count Orlok's castle in "Nosferatu."

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

Real bones which are said to have belonged to a Polish dragon.

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

A rare octagonal brick beacon on an isolated island in the Baltic.

This insurance company building reminds customers that witches, bears, and gnomes are out there, best be insured.

Villas that once served as playgrounds for the rich now fall away in decay.

An alien church provides much needed silence in the midst of a Finland shopping center.

Copenhagen's celebrated theme park and gardens.

Where the lovelorn find a home for their sentimental keepsakes.

The "dragon babies" of southeastern Europe.

A whimsical bridge adorned with decorative dragons.

A miniature train-ride through Slovenia's largest cave system.

This one-time health resort was used by aristocrats around the world.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.