This Roman exedra is situated in Terracina, italy at the crossroads between Via Appia claudia and Via Appia Traiana (km 108 of SS Appia No 7).
The monument (of which only the stand remains) is made up of a core in cement-work coated with square work.
At the center there is a base that was used to support a statue (perhaps that of the Emperor Trajan). The accuracy of construction implies a monumental stopover on the street