The Villa Farnese in Caprarola, not to be mistaken for the Palazzo Farnese in Rome, is an extraordinary example of 16th century art and architecture. Despite the rooms being empty of furniture, the art that decorates the walls and ceilings will give you the feeling of the opulence of villas in the Italian countryside, as you can see from the pictures below.
Cardinal Alessandro Farnese began the building project in 1504. It was then in the shape of a pentagon with a pentagonal inner courtyard, but Alessandro Farnese the Younger preferred a circular arrangement, and the inner courtyard was changed to what you see today.