This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

Mummified monks and the accidentally interred, in a 17th-century crypt.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

Europe's second largest ossuary wasn't discovered until 2001.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

This network of conjoined cellars was riddled with traps and supposedly allowed the townspeople to pretend their homes were deserted.

These 17th-century mummies are no longer naturally preserved, but remain on display today.