Istanbul in 3 Days: Hagia Sophia, Blue Mosque & Bosphorus Classics

This is the itinerary for a first visit to Istanbul: the handful of sights that genuinely justify their fame, arranged so you're not crossing the city back and forth. Day one stays entirely inside the Sultanahmet historic peninsula, home to the Byzantine and Ottoman landmarks within a 10-minute walk of each other. Day two moves to the bazaars and a Bosphorus crossing, giving you both the shopping-district energy and the water views that define the city. Day three is a lighter half-day in Beyoğlu before you fly out. We've paced this for a couple or pair of friends with average walking stamina and no interest in rushing through queues — expect a genuinely full but not exhausting three days. Entry fees and opening-hour policies at several Istanbul landmarks have changed more than once in recent years (Hagia Sophia's visitor entry in particular), so treat the cost notes below as typical rather than guaranteed, and double check hours the day before you go.