Sultan Ahmed Mosque, located in Istanbul’s Fatih district, is one of the city’s most impressive historic monuments and forms part of a vast külliye complex commissioned by Sultan Ahmed I and completed by the architect Sedefkâr Mehmet Ağa between 1609 and 1620. Commonly known as the Blue Mosque because of its striking blue İznik and Kütahya tiles, it features more than 21,000 tiles arranged in over fifty different decorative compositions. Visitors can admire its six minarets, grand central dome and richly ornamented interior, showcasing exceptional Ottoman craftsmanship. Situated within Istanbul’s UNESCO-listed Historic Areas, it remains an essential landmark for those interested in history, architecture and culture.