The Arch of Hadrian (Greek: Αψίδα του Αδριανού, romanized: Apsida tou Adrianou), most commonly known in Greek as Hadrian's Gate (Greek: Πύλη του Αδριανού, romanized: Pyli tou Adrianou), is a monumental gateway resembling—in some respects—a Roman triumphal arch. It spanned an ancient road from the center of Athens, Greece, to the complex of structures on the eastern side of the city that included the Temple of Olympian Zeus.