The impressive bulk of the building immediately strikes the eye of the beholder, who is given the impression of standing before a real medieval castle, thanks to its tall crenelated towers with their bow windows, chimneys disguised by pinnacles and double acutely arched windows.
A flight of steps leads to the portico and its three arches on the main façade, which looks out over the park.
The side of the Castello that faces Piazza Nicolò Papadopoli and the local church is actually not the most important façade but it is by no means less splendid.
To one side, between the building and the huge entry gate, the big beautiful fountain stands under tall plane trees, complete with three tiered basins. The largest, featuring four lions, each lying down and facing a different point on the compass, collects the water that spills out in a curtain and splashes from the two above, supported on a slender central column.