Marbles Kids Museum made quick work of the corner at Morgan and Blount streets. On March 1, it tore down the former speedometer shop that had stood there for decades, but was empty in recent years.

Imagine a beautiful kitchen island made of Calacatta Viola marble with a backsplash in deep brown Emperador marble. The former a speckled blend of crisp white and plum purple, and the latter a dense, ...