Imagine the reflection of different colors in the water, their play and sparkle in the sun rays of the. There above the fountain was an amazingly beautiful stained glass ceiling, destroyed during the bombing in 1943. It is located inside a two-story house where Gian Giacomo Poldi Pezzoli lived. Collecting was his lifelong occupation, a passion he inherited from his mother, Rosa Trivulzio. Her father, in turn, owned an exquisite art collection.

Poldi Pezzoli managed to collect truly unique collection, which after his death he bequeathed for public purposes. The museum was opened to the public in 1881, two years after the death of the owner.