![caption-footer](http://onebigphoto.com/uploads/2015/06/caption-footer1.jpg)
Portuguese photographer Andre Vicente Goncalves pays tribute to this architectural element, he photographs a variety of colorful exteriors, sills, shutters, and shapes, grouping individual images into large grids at towns of Portugal, Italy and France. “I always had a curiosity about windows,” Goncalves writes, “like the structure of houses, they change region to region.”