The wine cellar in the home of Bernard Arnault and Helene Mercier must be incredible, and we bet their home smells amazing, too. He's the man behind Moet, as well as Dior, Dom Perignon, and Givenchy. That makes him worth in excess of $30bn.
As well as their wine and perfume supply, Mercier is a very gifted pianist. We bet they can throw dinner parties like nobody else in the world. They also have charitable interests, though; they recently pledged over $200m to the repair work needed at Notre Dame Cathedral.