The Quirinale stands on the highest of Rome's hills, and whoever has governed the city has governed it from up here. The popes began building in the 1580s and came up for the summer air, then stayed and made it their main house. It has never been retired into a museum: this is the residence of the President of the Republic and a working seat of state, so the long front you walk past is offices. Seeing inside means booking weeks ahead and carrying identification, and a state occasion can cancel your visit at short notice. For most people it stays a front seen from the square.
The square in front is open to anyone and is the reason to climb the hill. Two marble men over five metres tall stand there holding rearing horses. They were carved in antiquity for a bath complex on this hill and were never buried or lost: they simply stood here through every century. Medieval Romans called the whole hill the horse mountain because of them. An obelisk was raised between them in 1786, and the pair was pulled apart to make room for it. From the balustrade beside them you look out over the rooftops and domes of the city below.