Joachim started building this castle when he was eight years old. Over the years it constantly changed, and never looked the same two days in a row. The tower is about six meters high, all made from wood. Inside you have three separate rooms and the tower chamber which can be reached via a ladder. All rooms are equipped with led-lighting, and all sorts of secret drawers and cabinets. They even have an instant messaging facility that allows you to type messages on a keyboard in one room and let them appear on a display in another room.