Istanbul is the largest city and metropolitan of Turkey. Former names of the city, Byzantium and Constantinople, testify to this long history.
From the historical point of view, it is possible to consider Constantinople (Istanbul) with Athens and Rome, one of the three most important ancient capitals of the world.
Istanbul has a moderate climate, influenced by continental areas, the average summer temperature is between 18 ° and 28 ° C and in winter between 3 ° and 9 ° C.
The most important attractions of Istanbul are the Hagia Sophia (Aya sofya), Blue mosque, Topkapi Palace, Dolmabahce Palace, Süleymaniye mosque, Eyüp Sultan mosque and the Grand Bazaar.