Mariinsky Palace in St. Petersburg.
- Categories: Environmental Issues
- Location: St. Petersburg, Russia
- Event date: 05.07.2017
- Date published: 22.10.2017
- Author: Aleksandr Gal'perin
- Source: Sputnik
- Credit: Sputnik
- Original: Digital
- Media: JPEG, 4249x2833px, 6Mb