These photos are taken while walking to Topkapi palace. It's the place where the Ottoman Sultans lived. It's an UNESCO World Heritade Site as well as many other places in Istanbul. The tickets to the palace area cost only about 10€ but you had to pay more to get into The Imperial Harem where the sultan and his family lived. It cost about 7,50€, but we didn't have time to visit the harem because the whole palace area was so huge!