The Bosphorus Villages of Arnavutköy, Turkey. Arnavutköy is a historic neighborhood in Istanbul, famous for its wooden Ottoman mansions and seafood restaurants, as well as the campus of the prestigious Robert College with its centennial buildings.
The thermal pools of Hierapolis: think taking a bath in an ancient pool, in sparkling water (yes, sparkling!), sitting on a piece of fallen column that was standing there in times you've studied in history books. Just amazing.