A short 15-minute ferry-ride from near Dolmabahce Palace in Istanbul is the picturesque Maiden's Tower (known as Kiz Kulesi in Turkish and also Leander's Tower during the ancient Greek and Byzantine periods). It was built in 408 BC by an Athenian general to control the movement of Persian ships in the Bosphorus. It was the setting for the climatic scene in the 1999 James Bond film, "The World Is Not Enough." There's a restaurant in the tower, but the guidebooks indicated the food is expensive, so we opted just for drinks and to enjoy the view.
Slideshow of the Maiden's Tower in Istanbul.