Marvel at the majestic architecture of the Hagia Sophia as you’re guided through its beautiful interiors. Known as the Church of Divine Wisdom, this is one of the greatest marvels of architecture, constructed as a basilica in the 6th century by Emperor Justinian. Learn all about its construction started in the 5th century from your guide. Then continue for a walk in Istanbul. Complete your experience with a visit to the Grand Bazaar. The Grand Covered Bazaar is the most attractive shopping center and the biggest "souk" in the world with nearly 4000 shops selling antiques, jewellery, gold, carpets, leatherware and souvenirs. Your tour will finish at the Grand Bazaar, in case you would like to spend the rest of the day shopping!