Question: What is the family of brands with a hotel in Istanbul Old City that operates in 52 countries?
Sentence (from "Tayyare Apartments"): The Tayyare Apartments, (initially Ottoman Turkish: "Harikzedegân Apartmanları"‎ or later Turkish: "Tayyare Apartmanları" ), are a complex of four buildings completed in 1922 and located in the old city of Istanbul, Turkey.
Relevant evidence: No