I live downtown Minneapolis and live near Nicollet Mall [0]. Which only allows pedestrians and busses. It's quite nice. They put out chairs for people to sit on and at times have things like a connect four and corn hole games. There is a regular farmers market that happens also.
I love how safe it feels. It's almost like a giant side walk. I'm always surprised that the chairs don't get stolen. I walk down it multiple times a day usually (unless I take the Skyway because of weather).