This cover from Russia depict a joint issue with Turkey issued in 2020 on motive Mosques. The stamp on the left shows a picture of the
Süleymaniye Mosque, one of the monuments located at the
Historic Areas of Istanbul. The Historic Areas of Istanbul are a group of sites in the capital district of Fatih in the city of Istanbul, Turkey. These areas were added to the UNESCO World Heritage List in 1985. This World Heritage Site includes buildings and structures such as the Sarayburnu, the Topkapı Palace, the Hagia Sophia, the Sultan Ahmed Mosque, the Hagia Irene, Zeyrek Mosque,
Süleymaniye Mosque, Little Hagia Sophia and the Walls of Constantinople.
