Like Download 5.89 MB Blue windows 6016 x 4000 pixels Aspect ratio 188:125 NIKON D3200 200 mm f/6.3 1/640 s ISO 200 Online since: 11 May 2017 Taken: 19 June 2016 CC0 / Public Domain office glass tower architecture structure urban steel reflection wall exterior city blue texture window grid abstract background pattern outdoor construction