It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
This image was acquired from
Keywords from Image Description:
alberta calgary canada buildings city cityscape dark dawn downtown highrise lights morning night night time nighttime office skyscraper sunrise outdoor sky Calgary's downtown skyline as seen in the early morning Calgary's downtown skyline as seen in the early morning
Page 2017 Free-images.com. All images are Public Domain