Istanbul is the largest city in Turkey.ocated on both sides of the Bosphorus, the narrow strait between the Black Sea and the Marmara Sea, Istanbul bridges Asia and Europe both physically and culturally.
Area:
• Land 5,196 km2 (2,006 sq mi)
• Water 147 km2 (57 sq mi)
• Metro[c] 5,343 km2 (2,063 sq mi)
istanbul5 istanbul10

istanbul1istanbul2

istanbul4istanbul6

istanbul8istanbul9

References: http://wikitravel.org/en/Istanbul