This work 'timelapsehdchart' is a derivative of : 
Title : Night Lights (http://goo.gl/yQxGb6)
Author : https://www.flickr.com/photos/haydenirwin/
Used under : http://creativecommons.org/licenses/by/2.0/
'timelapsehdchart' is licensed under http://creativecommons.org/licenses/by/2.0/