Discover the magnificent historical heart of Istanbul on this comprehensive full-day walking tour. Your professional guide leads you through thousands of years of history, from the Byzantine Empire to the Ottoman golden age. Visit the awe-inspiring Hagia Sophia, marvel at the Blue Mosque's cascading domes and six minarets, explore the opulent Topkapi Palace where sultans ruled an empire, and lose yourself in the labyrinthine corridors of the legendary Grand Bazaar.