The Etruscan Arch or Arch of Augustus or Augustus Gate is one of eight gates in the Etruscan wall of Perusia, known today as Perugia. It is one of the only two surviving gates along with the Porta Marzia to the south. It was constructed in the second half of the 3rd century BC and was restored by Augustus in 40 BC after his victory in the Perusine War. Representing the best surviving and most monumental of the Etruscan city gates it opens onto the cardo maximus of the city, corresponding to the modern Ulisse Rocchi Road.
The arch is part of a massive set of walls which are 30 ft tall and 9,500 ft long made of travertine and set without mortar. It covers approximately a quarter of a square mile over three hills.
Wikipedia https://en.wikipedia.org/wiki/Etruscan_Arch
Address 62 Via Ulisse Rocchi, Perugia 06123, Italy
Coordinates 43°6'51.954" N 12°23'22.736" E