Regenstein Castle ruin near Blankenburg, Harz, Saxony-Anhalt, Germany, Europe

horizontal color image travel destinations travel saxony anhalt germany europe no people outdoors day cloud sky old ruins forest tree regenstein castle castle fortress built structure architecture cliff landscape rock formation rock building travel destination tourist destination tourist destinations rocks rock formations outdoor outside ruin ruins past historic nobody no one no person landscapes fort forts fortresses history archaeological archaeology old ruin forests trees daytime cliffs castles fortified fortification historical buildings architectural