Villa (or Palazzo) Farnese.  Viterbo, Northern Lazio, Italy.

"The whole Villa Farnese complex in Caprarola was designed by the architect Jacopo Barozzi da Vignola, under commission from Cardinal Alessandro Farnese. There is a close topographic and stylistic relation between the building and its gardens: the “Lower Gardens” and the “Upper Gardens” are part of a single concept, even though they have come down to us having undergone a series of modifications."  Source: GrandiGiardini.It