Potštejn, Medieval castle ruin in Eastern Bohemia, Czech Republic.

Potštejn is a stone castle ruin set on a rocky hilltop in eastern Bohemia, Czech Republic, showing architectural layers from the Gothic, Renaissance, and Baroque periods. Sections of fortification walls, gateway structures, palace remnants, and a chapel are still standing across the site.

The castle was built in the 13th century as a fortified stronghold and changed hands several times among regional lords before King Charles IV seized it in 1339. After that, it gradually lost its role as a seat of power and fell into decline over the following centuries.

The ruins sit high above the village and draw walkers from the surrounding area who come for the view as much as for the stones themselves. On weekends, families and hikers often picnic near the old walls, making the site part of everyday local life.

The site is reached by a marked hiking trail and is open year-round, though paths can be icy in winter so sturdy footwear is a good idea. Allow enough time to walk through the standing structures and around the outer walls, as the grounds cover a good stretch of the hilltop.

A local nobleman named Harbuval spent years searching for a treasure he believed was hidden somewhere inside the walls, and his obsessive quest later inspired a novel by a well-known Czech writer. This legend of buried riches adds an extra layer to the visit that goes beyond the stones and walls.