White and airy, the façade is characterised by three large ogival windows and by the embattled clock tower. 

On its surface of sandstone the coats of arms of some eminent Italian families are visible (Visconti, Montefeltro, etc.), while in the space between the arches of the portico are the coats of arms of the four Castles constituting the Republic’s ancient countryside: Serravalle, Fiorentino, Faetano and Montegiardino.

In the middle, between two large ogival windows, is a polygonal balcony from which, during a fascinating ceremony, the Captains Regent appointed for the following 6-month term are announced.  

At the right corner is a beautiful bronze statuette of Founder Saint Marino, moulded in 1894 by Giulio Tadolini (Rome, 1849-1918), and, on the clock tower, a Murano mosaic triptych depicting Saints Leo, Quirino and Agata. 

Under the portico, near the three huge entrance doors, is a marble bust in memory of architect Francesco Azzurri sculptured and donated by Giulio Tadolini.