Let’s start to explore Istanbul. First visit is Hippodrome. It was the center of sport activities of Constantinople. <br><br>Haghia Sophia, is the most famous museum in Turkey and one of the greatest marvels of architecture. Haghia Sophia was built as a church in the 6th century by Emperor Justinian then in 1453 renovated into a mosque by Ottoman Emperor Fatih Sultan Mehmet. (Closed on Monday)<br><br>Blue Mosque, as known as the Sultanahmet Mosque, this breath-taking building is one of the most majestic Ottoman Mosques in all of Turkey. (Closed on Friday)<br><br>Topkapi Palace, which has been home to the Ottoman dynasty for many years, was used for educational administrative and as the art center of the state. (Closed on Tuesday)<br><br>Grand Bazaar, is the biggest market and the most attractive shopping center of Istanbul which has lots of shopping opportunities with carpets, leather, jewellery, antique tiles etc. (Closed on Sunday)