Hidden amid the lush green on the banks of the Yellow River in Plymouth, Indiana is a footbridge. This bridge was constructed in 1898 by the Rochester Bridge Company, according to it’s Wikipedia page, and was added to the National Register of Historic Places in 1981. What qualifies this bridge was a pocket curiosity? It is a truss bridge that moves with you. I’ll confess I’m not sure if it is supposed to do that, but in the spirit of what bends doesn’t break, the bridge translates the energy of your steps into a bounce and a sway. Get twenty people walking across it at once and you have an unpassible sobriety test. This bridge recently won a grant competition and will be getting a facelift.