I've always wanted a butler's pantry--a walk-in space where all pots, glassware, and dishes would be easy to see and access. It also could serve as a display area for collections. You could make your own butler's pantry by tucking a hutch/buffet like this one into a small room or cellar (source). Below: A beautiful, rustic butler's pantry with a window (source).
I love the hanging linen storage in this pantry from the Southern Living idea house (photo: Van Chaplin).