Like Download 8.17 MB Urban staircase 5747 x 3752 pixels Aspect ratio 821:536 NIKON D7100 16 mm f/7.1 1/13 s ISO 100 Online since: 18 December 2016 Taken: 27 July 2014 CC0 / Public Domain staircase stairs step stairway business interior design climb architecture concrete floor modern construction multistorey grayscale residential house empty railings interior design ceiling walls black and white