These "cities" are made of quarter-inch pieces of mirror in various sizes and lengths glued together back to back (when this is done, the backs of the mirrors are invisible). The "buildings" are then put together with strong glue and arranged into a "city" pattern. These are approximately eight inches square and equally high. By putting red and green mirrors at the bottom it is possible to create Ruby City and Emerald City seen below. These make distinctive table decorations.

Ruby City

Krypton City

Emerald City