Best time to visit: Spring (April–June) and Autumn (September–November) for mild weather and manageable crowds.
Day 1 — Historic Core: Start at Hagia Sophia (built 537 AD), then the Basilica Cistern with its eerie Medusa carvings, the Blue Mosque with 20,000 handmade Iznik tiles, and end at Bulgur Palace — a restored 1912 mansion now a cultural centre.
Day 2 — Beyoğlu & Palaces: Panoramic views from Galata Tower, then Topkapi Palace's Harem and treasury, and the Grand Bazaar — 61 covered streets and over 3,000 shops.
Day 3 — Modern Istanbul: Egyptian/Spice Bazaar, Istiklal Street, Taksim Square, Dolmabahçe Palace on the Bosphorus, and Yıldız Palace surrounded by lush gardens.
Day 4 — Princes' Islands: Take a ferry to Büyükada — no motor vehicles, horse-drawn carriages, and a relaxing meal by the sea.
Where to stay: Beyoğlu for its vibrant cafes and boutique hotels, or Sultanahmet for proximity to historical landmarks.
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