A grand Napoléon III-era villa west of Paris, this home carries the kind of architectural presence that's hard to manufacture – high ceilings, generous reception rooms, and a lower level with a billiard table and lounge that practically invite a long evening in. The garden terrace extends things naturally into the open air, ideal for alfresco receptions or a quiet afternoon with a glass of wine. Croissy-sur-Seine sits on the doorstep of Paris, giving groups the best of a private, residential setting without straying far from the city.