The Hagia Sophia is a former Greek Orthodox Christian patriarchal cathedral, later an Ottoman imperial mosque and now a museum in Istanbul, Turkey. It is one of the most famous landmarks in Istanbul and a must-visit for anyone traveling to the city. The building is a masterpiece of Byzantine architecture and is known for its massive dome, intricate mosaics, and stunning interior. Visitors can explore the museum and learn about the history of the building and its significance to Istanbul and the world.
