Houston's sprawl has come with controversy, but it has created a blank canvas for the public art community. It all started in the Telephone Road Place subdivision, where retired mail carrier Jefferson Davis McKissack built the Orange Show, an extraordinary and eccentric monument to self-reliance, hard work and, yes, the fruit itself. McKissack's installation spawned more of its kind in the Bayou City, like the Beer Can House, the Flower Man's House,...