Steam powered Traction Engines at a rally in East Sussex, England, United Kingdom, Europe

Engineers, athletes and enthusiasts gather on a lonely road in the San Luis Valley in central Colorado to try to break the speed record for a human powered vehicle. These vehicles are basically very, very aerodynamic bicycles.

Engineers, athletes and enthusiasts gather on a lonely road in the San Luis Valley in central Colorado to try to break the speed record for a human powered vehicle. These vehicles are basically very, very aerodynamic bicycles.

Engineers, athletes and enthusiasts gather on a lonely road in the San Luis Valley in central Colorado to try to break the speed record for a human powered vehicle. These vehicles are basically very, very aerodynamic bicycles.

Engineers, athletes and enthusiasts gather on a lonely road in the San Luis Valley in central Colorado to try to break the speed record for a human powered vehicle. These vehicles are basically very, very aerodynamic bicycles.

Engineers, athletes and enthusiasts gather on a lonely road in the San Luis Valley in central Colorado to try to break the speed record for a human powered vehicle. These vehicles are basically very, very aerodynamic bicycles.

Engineers, athletes and enthusiasts gather on a lonely road in the San Luis Valley in central Colorado to try to break the speed record for a human powered vehicle. These vehicles are basically very, very aerodynamic bicycles.

Engineers, athletes and enthusiasts gather on a lonely road in the San Luis Valley in central Colorado to try to break the speed record for a human powered vehicle. These vehicles are basically very, very aerodynamic bicycles.