Do you know what a penny farthing is? No? Well, you probably do, but perhaps you just didn't know what it was called. You know those old bicycles with a giant front wheel (up to 60 inches in diameter) and tiny rear wheels? Those are penny farthings, and they get their name from two old British coins. So, now you know. Moving on.
Why do we care about old bicycles that aren't really all that practical for modern-day use? All your questions will be answered by watching the video pasted after the break... though we did note the surprising lack of reaction from casual passers-by. Here we have what may be the single most impractical human-powered vehicle ever made, and it's awesome.
Its builder calls it the Monsterbike, and it's easy to see why. Old penny farthing bikes used pedals connected directly to that large front wheel, but the Monsterbike's front wheel is so large that's not really feasible. So, an elaborate set of chains and sprockets are necessary, as are dually rear wheels for steering. Hey, at least you don't need to worry about balance...