Poster with a wonderful view of some of the most important monuments in the Turkish capital Istanbul. The photo was taken from the Hagia Sofia, the cathedral founded in the sixth century, which was later transformed into a mosque. In the background is the Sultan Ahmet Mosque, better known as the Blue Mosque. This huge mosque was founded between 1606 and 1616 by Sultan Ahmed I. In the foreground are tombs where the deceased sultans and relatives were buried.