Starbucks announces plans to open it's tourist attraction set to open on Chicago's Magnificent Mile, It's set to open November 15th. Taking over the former Crate & Barrel store on the corner of North Michigan Avenue/Erie Starbucks Heaven is a four-story building 43,000-square-foot and will be the largest Starbucks in the world. The menu will offer Reserve coffee drinks and mixology, as well as fresh baked-products.