Your journey begins with a visit to the Hagia Sophia Grand Mosque, one of the most remarkable architectural wonders of the world. Originally built in 537 AD by Roman Emperor Justinian, this monumental structure has served as a church, a mosque, and a museum, before being reopened as a mosque in 2020. Admire its stunning dome, intricate mosaics, and historical significance as your guide shares its extraordinary story. (Entrance fee is extra, and Skip-the-Line tickets are available.)Next, see the Hagia Eirene Museum from the outside, a historic church located within the first courtyard of Topkapı Palace. This lesser-known Byzantine relic adds an extra layer of depth to your exploration of Istanbul’s Christian past.Continue to the Sultan Ahmed Mosque, famously known as the Blue Mosque, a masterpiece of Ottoman architecture built between 1609 and 1616 by Sultan Ahmed I. With its breathtaking blue İznik tiles, six minarets, and grand domed interior, the mosque remains an active place of worship and one of the most visited landmarks in Istanbul.Stroll through the Hippodrome of Constantinople, an ancient Roman stadium that once hosted chariot races, gladiator battles, and grand ceremonies. Learn about the remaining structures, including the Egyptian Obelisk, the Serpentine Column, the Constantine Column, and the German Fountain, each holding a piece of history from different civilizations.Conclude your tour with free time at the Grand Bazaar, one of the largest and oldest covered markets in the world, with over 4,000 shops selling traditional Turkish goods, jewelry, carpets, spices, and souvenirs. (The Grand Bazaar is closed on Sundays.)This tour ends at Sultanahmet Square, allowing you to explore further at your own pace.Note: Due to Friday prayers, this tour will operate in reverse order and will start at 12:30 PM on Fridays instead of in the morning.