İstanbul historically known as Constantinople and Byzantium,is one of the greatest cities in the world,at the crossroad of civiliza tions.It's also Turkey's most populous city.It has a long history and culture,with many museums and sites to explore.So a lot of tourists visit the city every year.Hagia Sophia,the Blue Mosque,the Topkapı palace and the Grand Bazaar are popular tourist attractions.You can easily find accommodation there.There are many great hotels and hostels for every budget.Also you can eat delicious Turkish food there.Located on both sides of the Bosphorus,the narrow strait between the Black Sea and the Marmara Sea,İstanbul bridges Asia andeurope both physically and culturally.İstanbul's population is estimated to be between 00 and 00 million people,making it also one of the largest cities in Europe and the world.The streets are crowded inistanbul but it's a great city to have lots of fun.