Istanbul was once Constantinople.
- Categories: Environmental Issues
- Location: Istanbul, Turkey
- Event date: 01.07.1992
- Date published: 26.08.2009
- Author: Yuriy Kaver
- Source: Sputnik
- Credit: Sputnik
- Original: DP92-2994, 35 mm slide
- Media: JPEG, 5356x3543px, 7.1Mb