In Old City Istanbul, visitors can experience firsthand a wealth of historical and cultural attractions. The iconic Hagia Sophia, with its stunning architecture and rich history, is a must-visit, located near Sultanahmet Square. Just a short stroll away, the Blue Mosque, renowned for its magnificent blue tiles, offers a serene atmosphere and is a significant religious site.The Topkapi Palace, which served as the residence of Ottoman sultans, is another highlight, showcasing exquisite gardens and grand architecture. Nearby, the bustling Grand Bazaar invites travellers to explore its labyrinthine alleys filled with shops selling everything from spices to handmade crafts.For those interested in history, the ancient Hippodrome is also in the vicinity, where you can see remnants of this former chariot racing venue, including the Obelisk of Theodosius.