I know what you're thinking. Right now you're probably saying "this a Photoshopped image, right?" Wrong! It is indeed the tallest motorcycle ever built; at least that's what the Guinness Book of World Records guys say. The behemoth is a real, working motorcycle, is named "The Monster" or "Dream Big", and was built by motorcycle enthusiast Greg Dunham from California, US.

"Dream Big" stands 3.4 meters tall, measures 6.2 meters in length, weighs 2948.3 kilograms and relies on an 8 226.3 cubic centimeter engine to power it to speeds up to 104 kilometers per hour. The massive engine is able to output 500 horse power, while the transmission features a gearbox with two forward speeds and reverse. Dunham says that he started building "Dream Big" somewhere in 2002, and, after three years of continuous work, it has already swallowed over 300,000 US dollars.

"The Monster" has six seats, including that of the driver, the tires alone reach a height of 1.8 meters and are nearly one meter wide.

"It took three years to build. When People ask me why I built it, I say because it was my dream, and I wanted to prove that impressive tasks can be accomplished by hard work and to inspire all to follow their dreams and prove all things are possible to those who believe," said Greg Dunham.

"This you have to see to believe it. Make sure to bring your camera to the Berdoo Bikes & blues Rendezvous to capture all of these incredible bikes. Ozzie Osborne's custom bike, Vince Neil's from Motley Crue, along with stunts being performed by RAS Racing and Team Peterson N.A.H.A. And non-stop music," said president and CEO of the San Bernardino Convention and Visitors Bureau.

"Dream Big" will be featured at the San Bernardino Convention & Visitors Bureau, held yearly on the downtown streets of San Bernardino, on 2 and 3 May.