By Cat DiStasio
Bicycles are ubiquitous on most city streets, but that doesn't mean they have to be boring. Over the years we've seen some absolutely bizarre bike designs that tiptoe around the borders of insanity. Some, like this wild dinosaur-inspired trike, were built to raise awareness about the environmental impact of fossil fuels. Others have more to do with the rider experience, whether it's the pursuit of a more thorough workout or the desire to fly with the birds. Bikes come in all shapes, sometimes with pointy bits, and sometimes without any pedals, but no matter how weird they look or work, there's something distinctly universal about these things we call bikes.