Be aware this is a hostless event this means that you will be on your own. I can hear that you are saying what the fudge but bear with me. Every Friday night Pera museum -one of the best museum in Istanbul - will be open its doors (incuding international visitors) for free from 18 to 22 pm. I will not be there but I do not want you to miss it. Check online about this beautiful museum . Its permanent collections about oriental paintings coffee drinking culture and weighing equipment is amazing. Important Notice: The temporary exhibiton is finished and next one is due to March 5th. Oddly, couchsurfing website doesn’t show exact location of the museum the link is below. https://maps.app.goo.gl/ZJqomZd5UJS1JJCh8?g_st=ipc