Blera, the birthplace of Pope Sabinianus and Pope Paschal II, was in ancient times, an Etruscan town on the Via Clodia. It is situated on a long, narrow tongue of rock at the junction of two deep glens. Some remains of the town walls still exist, and also two ancient bridges, both belonging to the Via Clodia, and many tombs hewn in the rocksmall chambers imitating the architectural forms of houses, with beams and rafters represented in relief.