Below is a series of photos I took recently when my family and I visited the castle ruins of Burg Waldeck in Waldeck, Germany. The top photo is a screen shot from Google Earth showing the layout of the castle as it appears today.
Burg Waldeck is a typical Keep and Bailey type castle. There is a rounded keep at the center of the complex with a small courtyard and various outbuildings. It is surrounded by a curtain wall that is currently about 10-15 foot high with rounded turrets defending the most vulnerable parts of the wall. It sits on top of fairly steep hill that rises about 300-350 feet above the surrounding terrain. Today the castle complex is entered from the northeast but in medieval times the entrance was through a double gate on the southeast corner of the complex. There are a couple of cisterns I found at the base of the hill that had tunnels leading in the general direction of the keep and may have been built concurrently with the castle to ensure water supply. I did not follow them very far because of lack of equipment and they were fairly full of rubble and probably dangerous. I did get some pictures of the interior though.
The castle itself was originally constructed in the 12th Century and was in almost continuous use until its destruction in 1705 at the end of an unsuccessful seven month siege. The castle was besieged several times in its history and passed back and forth in possession between Bavaria, Franconia, and the Swedes. Much of what exists today are reconstructions completed by the local historical society.