The glass dome aims at preventing the rain from entering the fort, but also possesses unique chasacteristics; containing openings that allow bats to enter the fort and seek shelter during the winter. We partnered up with the glassworks of Leerdam to shape the glass dome and allowed Children (and adults) to make individual designs on these glass sheets, which were then placed on the dome. A black-painted wood construction on the outside of the glass dome ensures that the glass slates can be easily assembled and the view from below unbothered by construction; resulting in a spectacular 'only glass' view from bellow.