Devin Castle.

“The castle stands just inside Slovak territory on the frontier between Slovakia and Austria. The border runs from west to east along the Morava River and subsequently the Danube. Prior to 1989, the Iron Curtain between the Eastern Bloc and the West ran just in front of the castle. Although the castle was open to the public, the area surrounding it constituted a restricted military zone and was heavily fortified with watchtowers and barbed wire. After the Velvet Revolution the area was demilitarised.”