Taming the surroundings produces a feeling of control. This garden in the Villa Torrigiani in Lucca is composed of framed water, trimmed plants, frozen animals and petrified humans. The lions are cast in stone - just to be on the safe side - and mastered to a point that they loyally pour water in the pool. The humans are as well carved in stone, under control. We can move freely, supreme.
The Villa Medici Fiesole in Tuscany seems to have it all: hills and a flat surface.
Rather than fighting topography, befriending the environment's natural features seems to have produced here a captivating result, a "top-of-the-world" feeling combined with flat gardens where one can plant - or just stroll.