Milštejn - Credit: Wikimedia Commons
Milštejn (, ) are the remaining ruins of a castle in the north of the Czech Republic. The ruins are located in the Lusatian Mountains at an altitude of 562 m, about 3.5 km north from the town of Cvikov. The exact date when the castle was built is unknown. Based on the surrounding sites, it is assumed that the castle was founded between the 13th and 14th centuries to protect the country trail leading from Lípa to Zittau. The first known owners of the castle were Berka of Dubá, a prominent cadet branch of a Bohemian noble family. Read more on Wikipedia
Source: en.wikipedia.org