This gate used to be the entrance of the former 'Stadsweeshuys' ('City Orphanage') at the Jacobijnerkerkhof in Leeuwarden. Opened in 1676, thousands of orphans as well as children from poor families grew up here until it closed in 1953. Nowadays the Natuurmuseum Fryslan (Frisian Nature Museum) is located here.
But ehm ..wait! If you look carefully.. is that a bird sitting there???