The Sinan Erdem Dome, formerly known as the Ataköy Dome, is a multi-purpose indoor arena that is located in Ataköy, Bakırköy, Istanbul on the European side of Istanbul, Turkey.
It has a seating capacity of 22,500 for concerts. For the sport of basketball, it has a seating capacity of 16,000, and for the sport of tennis, it has a seating capacity of 16,457 people, making it Turkey's largest multi-purpose indoor venue, and the third largest in Europe. The arena is named after Sinan Erdem, a former Turkish volleyball player who was the President of the Turkish Olympic Committee, from 1989, until his death in 2003.
Wikipedia https://en.wikipedia.org/wiki/Sinan_Erdem_Dome
Address Bakırköy 34147, Turkey
Coordinates 40°59'18.711" N 28°51'14.397" E