ZAVELSTEIN, GERMANY: Burg Zavelstein is located in the northern Black Forest in Germany. It is a ruin of a castle that was built around 1200. The castle was destroyed in 1692 and has been abandoned since then. The clearest remnant is the 28 m high tower, which is still in good condition today. Parts of the outer walls remain from the rest of the castle. The castle can be visited free of charge. Only for the ascent to the tower you have to pay 50 ct.