La villa Ephrussi de Rothschild, where I spent many interminable lunches and dinners with my mother while growing up! This sumptuous villa is truly a remarkable landmark in the South of France.
La superbe histoire de cette villa incomparable: http://www.villa-ephrussi.com/fr/villa-dhier-aujourdhui
Cap Ferrat is one of the three major capes of the French Riviera and in my opinion probably the most beautiful. Like a long arm jutting into the Mediterranean, it separates the bay of Villefranche and that of Beaulieu, about half way between Nice and Monaco. It is also one of the most expensive parts of the coastline in terms of real estate, dotted with the exclusive and secluded Belle Epoque style villas of the rich and famous who first discovered the Riviera in the 19th century and found that the climate and scenery were so amazing that they decided to stay.
One of the most prominent of these villas and the only one open to the public is the Villa Ephrussi de Rothschild, built by Beatrice Ephrussi de Rothschild, a very wealthy French socialite, between 1905 and 1912. She was lucky enough to be able to pick one of the best sites on the Cape, at the top of a narrow isthmus dominating the sea that provides stunning views both east towards Beaulieu and Italy and west towards the deep waters of the Bay of Villefranche and its ancient harbour. Upon her death in 1934, she donated the property to the Institut de France, who have maintained it to this day.
The gardens are fabulous!