Sultanahmet

A visit to Istanbul isn’t complete without a visit to Sultanahmet Old City, once the social and political centre of the Roman, Byzantine and Ottoman empires. This neighbourhood takes you through Istanbul’s rich history and some of its most stunning architecture is within walking distance of the main square. The 6th-century Hagia Sophia dominates the skyline and is easily recognisable from its vast dome, colourful marble columns, Islamic art and glittering Christian mosaics. Other must-sees include the Ottoman-era Topkapi Palace, the 15th-century Sultans’ residence transformed into a museum in 1924; the Blue Mosque, renowned for its tiles and minarets – and the 6th-century Basilica Cistern, the largest surviving Byzantine cistern in Istanbul.