Frýdštejn

Frýdštejn - Credit: Wikimedia Commons

Frýdštejn Castle () is a castle ruin in Frýdštejn in the Liberec Region of the Czech Republic. It is one of three castles in Jablonec nad Nisou District. A typical rock castle, it lies on the upper end of a long sandstone rock ridge. The castle dominates the nearby Jizera river valley and the old trade route from Turnov to the north. Read more on Wikipedia

type: military installation
date from: 1385

Source: en.wikipedia.org