Atlanta did a kind of similar thing when they raised the streets downtown on viaducts to eliminate a bunch of level grade crossings over a big rail yard. It also had speakeasys during Prohibition, then was abandoned until the '60s. It’s been variously a tourist attraction/entertainment district/shopping mall since then, although it’s struggled economically and the city keeps trying to “revitalize” it.
Atlanta did a kind of similar thing when they raised the streets downtown on viaducts to eliminate a bunch of level grade crossings over a big rail yard. It also had speakeasys during Prohibition, then was abandoned until the '60s. It’s been variously a tourist attraction/entertainment district/shopping mall since then, although it’s struggled economically and the city keeps trying to “revitalize” it.