I found this flower during one of my morning walks. After a little bit of investigation I realized that it could be coming only from a tree and assumed that this is a Platanus tree. But later I found out through other people with whom I shared this finding that this is a tree I never heard about - Tulip Tree. This proved to be a real discovery! Especially when I found out that practically there is no street around my home - without one of a these wonderful trees ;)
Above - another close-up sketch. Below - whole tree silhouette.