How many? Photo by: HinesĀ What am I looking at? It is hard to tell how many towers this building in Hartford, Connecticut, has and where one ends and the other begins. The illusion is caused by the reflection in the windows. More optical illusions:Cat HeadDead Man's FingersParquet FloorMagayon and PangarononElvish WritingGrid Illusion ShirtFried Chicken TendersRiver in the Sky