In the square, in addition to the Cubic Gate and Petrignani Palace, we can see some of the town’s most important buildings. On the short side to the left, there is the characteristic Town Crier’s Arcade: from the vantage stand, reachable through a double flight of stairs, the town crier, or herald, made public announcements to the call of a trumpet.

On the stairway stands a column with a Doric capital that was erected in 1479 in honor of Stefano Colonna who committed to the municipality of Amelia, the jurisdiction on the town of Penna in Teverina, an ancient feud that belonged to Colonna family. A public clock built during the 18th century is on top of the arcade.