Istanbul 1-day itinerary

Start at Sultanahmet Square — the spiritual heart of Istanbul. The Hagia Sophia (₺720) is a 1,500-year-old masterpiece — cathedral turned mosque turned museum turned mosque again, with Byzantine mosaics coexisting with Islamic calligraphy beneath the massive dome. Walk across to the Sultan Ahmed Mosque (Blue Mosque, free) with its six minarets and 20,000 blue İznik tiles. Both buildings face each other across the park.

Walk to the Grand Bazaar (Kapalıçarşı) — one of the world's oldest and largest covered markets with 4,000+ shops. The labyrinthine lanes sell ceramics, leather, textiles, lamps, jewellery, and Turkish delight. Haggling is expected. Continue to the Mısır Çarşısı (Spice Market) near the Galata Bridge — the aromas of saffron, sumac, and Turkish coffee hit you at the entrance. Grab a simit (sesame bread ring, ₺25–40) from a street vendor.

Walk across Galata Bridge at sunset — fishermen line the railings and the Golden Horn glows orange with the mosques silhouetted against the sky. Eat balık ekmek (grilled fish sandwich, ₺80–120) from the boats at the Eminönü waterfront — the most iconic street food in Istanbul. Climb to Galata Tower (₺650) for 360° views, then walk İstiklal Caddesi — the bustling pedestrian avenue with bars, restaurants, and the historic tram.