The Bagati Walseki Museum is one of the most well-preserved museums in Europe today as a luxury house. It used to be a pair of brothers and a baron. Until the mid-1970s, their descendants still lived in this place. Visitors could see the art and furniture collected over the past two centuries.
I've only been to this museum during the annual furniture fair every April, but I think it's one of the most beautiful preserved palazzi I've seen. An incredible wealth of historical artifacts, handicraft, and social values from different eras since the Renaissance can be extracted from the grand sequence of rooms, but the most interesting aspect (at least during the Salone del Mobile) is the intermingling of contemporary design work with the historical pieces. A great place to stimulate the imagination!
The houses collected during the Renaissance were far from the noise of modern Milan, collecting the history of movies and photographs.