From the Daily Sabah I quote: “ArtIstanbul Feshane. Spanning over an impressive area of 8,000 square meters, this cultural hub features a biennial area, temporary exhibition spaces, a store, a conference hall, a library, and a cafe, offering visitors a rich and immersive experience. […] Originally built in 1833, Feshane was established as a textile factory during the Ottoman era. Its primary function was to produce the fez hats”. You can get here with a new tram to Eminönü, and the Eyüp Sultan area is across the road.