Paris has Champs Elysees, New York Fifth Avenue and Istanbul can boast with Rumeli Street, which is located in the heart of Nişantaşı district.
If you want to buy some high-end clothes, visit this luxury shopping district full of brand stores! There are also many bars, pubs and restaurants around.
Wikipedia https://en.wikipedia.org/wiki/Nişantaşı
Address 7 Mezarlık Arkası Sokak, Beyoğlu 34440, Turkey
Coordinates 41°2'31.204" N 28°57'41.533" E