Fingal’s Cave, Inner Hebrides, Scotland. "Fingal's Cave is a sea cave on the uninhabited island of Staffa, in the Inner Hebrides of Scotland, part of a National Nature Reserve owned by the National Trust for Scotland" via Wikipedia.
REAVER Military Motorcycle by ProgV the upper part is a jet engine, nozzles are on each side so they won't burn the tyre. lower part can open up to let driver get inside ( so actually the size of this motor is huge.
Yamaha Moegi Concept - The Moegi is essentially, an ultra-light, ultra fuel efficient motorcycle (powered by a single cylinder four-stroke engine). Potentially capable of 50 mph and a mindboggling 188 miles per gallon.