And this is one for the urban explorers. Ralsko is a big patch of countryside to the southwest of Liberec that was as an artillery range and proving ground for the Czechoslovakian and Soviet armies until 1991.
It’s a 250-square-kilometre space of deep, uninhabited woodland that covers several tall hills, and you can find maps and coordinates online to eerie abandoned installations including barracks and even a disused airport.
Sharing the scenery with these modern ruins are the atmospheric remnants of several medieval castles, Ralsko, Stohanek and Devin, which have lain empty since being sacked by the Swedes in the 30 Years’ War in the 1600s.
