What do the great streets that Nicollet Mall aspires to become have in common? Do they all have benches? Do they all have trees? Are they all vehicle free? Do they all have shade trees? Do they all have a playground? Are they all major regional shopping streets? No. One thing they all have in common is plenty of room on the sidewalk for pedestrians; that is a given. Interestingly, the other thing all great streets seem to share is something not even on the street itself but rather the buildings; they all relate well to the street. There are…