Apparently taking a cue from the Flintstones, Washuzan Highland Park in Okayama, Japan, has employed a little modern Stone Age technology with the The Skycycle. The cars on this roller coaster are entirely pedal powered by the riders. Somehow this idea seems more terrifying than taking a hairpin turn at 100mph.
Strange Pedal-Powered Japanese Roller Coaster [TechEBlog]
