The world's largest model of our planetary system.

A Swedish town came up with an out-of-the-box way to eliminate the bloodthirsty insects.

No one knows the meaning behind this giant sculpture of a nude woman with a fork riding a rooster in Havana.

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

An underground city of salt.

The unsettling remnants of a torn down movie set lies nearby the ruined location of the actual Płaszów Labor Camp.

There are thousands of tributes and memorials to the King, but none quite like this one in a Kraków city park.

This man-made mound monument was built out of soil from all across the Polish empire.

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.

Poland's oldest surviving university building holds a wealth of historic science instruments including some used by Copernicus.

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

This historic Amsterdam bar used to accept sailor's monkeys as payment.

A floating cat sanctuary on an Amsterdam canal.

The cedar tree in Highgate Cemetery earned its title by accident.

The medieval castle built as headquarters for the Pope's secretive Knights Templar.

This basement museum explores the art and artistry of fascism.

This impressive collection of rare books on ancient mysticism inspired author Dan Brown.