This Gingko tree grows outside of the Muiderkerk on Linneausstraat and is much younger than those I’ve found in Oud Zuid. It’s also not loaded with ripe orange fruit so is most likely a male tree. The leaves of both male and female Ginkgo can be used to make a tea. The plant, including it’s leaves and especially the fruit, does contain some chemicals which are harmful so if using them, read up carefully on how to harvest, how much to use and whether it will interact unfavourably with your body.