In the town quarter of Porta Perlici, a town gate of the 12th century with a double inner arch and door-posts in Umbrian and Roman blocks.
You will note the remains of the structure of the Roman Amphitheatre
of the 1st century A.D.
, the elliptical form of which can still be recognized in the lay-out of the medieval houses.
A garden occupies the area of the former arena, while the only remain is a travertine arch.