A bridge consisting of three giant trampolines would be located near the Bir-Hakeim bridge, which connects the 15th and 16th arrondissements in the French capital.
The enormous PVC rings would be inflated with more than 130,000 cubic feet of air, forming arches across the iconic waterway.
The rings would also support trampolines of mesh fabric stretching nearly 100 feet across. Users could bound away safely; if they jump too far, they'd fall into the Seine.
It isn't clear if the bridge will actually get installed, but the concept is too awesome to ignore. Imagine the possibilities: trampoline sidewalks, roads, and highways. Who would ever want to return to hard surfaces?