Where: Balduinstein, Germany Start of construction: 12th Century End of construction: 13th Century Most important renovation: 19th Century Accessible: no, private property Important fact: Current Gothic Revival exterior came after a renovation that lasted from 1850-1855. There are plans to open the castle to the public in the future (For more information see the castle's website), but first a thorough renovation is to be carried out. http://www.eventsimschloss.de/