"Adorned with more than 20,000 blue handcrafted İznik tiles, stained-glass windows, and the golden brushstrokes of a 17th-century calligrapher, the Blue Mosque is the legacy of Sultan Ahmet I (1590–1617). The young sultan audaciously wished to outdo the builders of Hagia Sophia, commissioning six minarets to match the number at Mecca’s Sacred Mosque (which now has seven minarets as a result). Today, this magnificent mosque is a place of worship for thousands who visit from around the world."