More on our trip to Nashville/Columbia Tennessee. Deborah had the chance to visit some homes in Columbia and spend time with their owners. One, in particular, is a couple who are avid clock collectors. This is just a couple of the areas in their home where you will find the collectible timepieces. Notice the two gold specimens on the mantel. . . they are Atmos Perpetual Motion clocks, 22 carat gold plated, which run on small temperature changes in the room. Approximate cost of each unit: $5,500.