This pic is from the first relay in 2011, taken in Lake Havasu, AZ. The reconstructed London Bridge in the background, or at least some of the stones from it, were the work of Robert Paxton McCulloch, best known for chain saws, go-cart engines, and Paxton centrifugal superchargers, which have since evolved into Vortec superchargers. That's Chopper Jim on the left, and Kayjohn on the right.