As for the Airbnb: it is not available on the airbnb website anymore.
To be sure, the cats slimmed down and dirtied-up when I walked outside the busier zones of the city into the immigrant areas — parts of Fatih, for example.
The key is to research thoroughly.
Street food is part and parcel of life in Istanbul.
Then Istiklal starts at Taksim Square and leads down to Galata Tower.