On Saturday 14 September and Sunday 15 September, Open Monumentendag takes place. This is a day when many monuments in The Netherlands can be visited which are usually not accessible to the public. This year Holy Trinity is taking part again, but only on Saturday 14 September; the church will be open from 10.00 am to 5.00 pm. Perhaps just as important, you can enjoy homemade cakes and tea or coffee in our tea-room. Once…