Open day monuments in Deft

Hello next weekend is the national monument open day
Delft has a lot of unknown smaller historical buildings that you can visit for free that day.
http://www.openmonumentendag.nl/ then enter Delft or the city of your choice for a listing of such places
click on zoek then enter delft in the gemeente:plaats box
They seem to have a different list every year! The Prinsenhof is never free on that day by the way.

Really worth it to discover the more behind the scene places
Lucie