>Vittoriano memorial
From an architectural perspective, it was conceived as a modern forum, an agora on three levels connected by stairways and dominated by a portico characterized by a colonnade.The complex process of national unity and liberation from foreign domination carried out by King Victor Emmanuel II of Savoy, to whom the monument is dedicated, has a great symbolic and representative value, being architecturally and artistically centred on the unification of Italy—for this reason the Vittoriano is considered one of the national symbols of Italy.
https://en.wikipedia.org/wiki/Victor_Emmanuel_II_Monument
Pictures do not do it justice. It's ginormous.