These are no ordinary exercise machines. Nope. When you get on this four-person workout wonder, called Team Dynamo, you pedal together to drive a generator that helps power The Green Microgym – a new environmentally friendly health club that opened last week in Portland, Oregon.

The new gym uses a combination of solar and human power to run the place. It also features treadmills that use 30-percent less electricity, recycled flooring, and green workout classes.

Team Dynamo is kind of like the Fender Blender I told you about last month, only you get to make electricity instead of a smoothie. :) Pretty cool, huh?