The Lauter valley has the most castles and ruins in whole Germany. The ruine of Hohengundelfingen ihas free access and and offers a great view over the valley and the neighbouring castles. At the castle Derneck you can enjoy a selfmade cake and take a rest. The Lauter valley offers a stunning view - castles from the 16th century.
Nowadays the lordly castles are often fascination ruins. Most of the ruins are free of charge and give more insight into the mediveal building technique and living conditions. There are also some guided tours available for some of the castles and ruins.