Istanbul sits at the crossroads of Europe and Asia. The city has been a capital of three empires: Roman, Byzantine, and Ottoman. The historic peninsula of Sultanahmet holds some of the worlds most remarkable architecture. The European side contains the majority of the city historic and cultural attractions. Hagia Sophia was built in 537 AD. The Blue Mosque was completed in 1616. The Grand Bazaar has operated since 1455. With over 15 million residents, Istanbul is Turkeys largest city and one of the 20 largest cities in the world. This guide covers the essential experiences on the European side of Istanbul for 2026.
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Hagia Sophia: A 1,500-Year-Old Architectural Masterpiece
Hagia Sophia was commissioned by Emperor Justinian and completed in 537 AD. The dome rises 55.6 metres above the marble floor. For nearly 1,000 years it was the largest cathedral in the world. After the Ottoman conquest in 1453 it became a mosque. In 1935 it opened as a museum. In 2020 it returned to mosque status while remaining open to visitors. The interior features Byzantine mosaics from the 10th and 11th centuries and massive calligraphic medallions from the 19th century. The building has 40 arched windows around the dome. Entry is free for worshippers. Tourists pay 25 euros (as of 2026). The building is open daily from 9 AM to 7 PM in summer and 9 AM to 5 PM in winter. The queue can exceed 1 hour during peak season. Arrive before 9 AM to avoid the longest wait. Women must cover their heads and shoulders. Men must wear long trousers.
The Blue Mosque and Sultanahmet Square
The Blue Mosque sits directly across from Hagia Sophia. It was completed in 1616 under Sultan Ahmed I. The mosque has 6 minarets, a feature that caused controversy when built because the Grand Mosque in Mecca also had 6 minarets. The problem was solved by adding a 7th minaret to Mecca. The interior has 20,000 handmade blue Iznik tiles featuring 50 different tulip designs. The central dome rises 43 metres. The courtyard is nearly as large as the mosque itself. Sultanahmet Square links the two landmarks. Beneath the square lie the remains of the Hippodrome of Constantinople, which held 100,000 spectators. The German Fountain was a gift from Kaiser Wilhelm II in 1900. Entry to the Blue Mosque is free. It is closed to visitors during the 5 daily prayer times, each lasting 30 minutes. Non-worshippers enter through the north door. Shoes must be removed and placed in bags provided at the entrance.
The Grand Bazaar: 61 Streets and 4,000 Shops
The Grand Bazaar opened in 1455 under Sultan Mehmet the Conqueror. It has 61 covered streets and over 4,000 shops. Approximately 250,000 people visit each day. The bazaar covers 30,700 square metres. It has 22 gates. The main entrance is at Beyazit Square. Visitors can find carpets, jewellery, ceramics, spices, leather goods, and textiles. Haggling is expected. Start at 50 percent of the asking price. The market has remained continuously operating for over 570 years. The Nuruosmaniye Mosque at the entrance was built between 1748 and 1755. The nearby Spice Bazaar was built in 1660. It has 85 shops. A spice mix costs 5 to 15 euros depending on the ingredients. The Grand Bazaar is open Monday to Saturday from 9 AM to 7 PM. It is closed on Sundays and public holidays. The best time to visit is before 11 AM when the crowds are smaller.
Galata Tower and the Bosphorus
The Galata Tower rises 67 metres above the Karakoy neighbourhood. It was built in 1348 by the Genoese colony in Constantinople. The tower offers panoramic views of the Bosphorus and the Golden Horn. Entry costs 650 Turkish lira (approximately 18 euros as of 2026). A Bosphorus ferry cruise is an essential Istanbul experience. Ferries have connected the European and Asian sides since 1837. A full Bosphorus cruise takes 90 minutes each way. A standard ferry ticket costs 50 Turkish lira. The route passes Dolmabahce Palace, built between 1843 and 1856 with 285 rooms. It cost 35 tons of gold to build. The Bosphorus Bridge was completed in 1973. It spans 1,560 metres. The Galata district has 30 art galleries and 50 restaurants. The Galata Mevlevi Museum was founded in 1491 and features Whirling Dervish ceremonies. Entry costs 35 Turkish lira.
Would you explore Hagia Sophia first or lose yourself in the Grand Bazaar? 🕌
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