Leonardo di Vinci's 500-year-old design that may have revolutionized the way bridges are built never left his sketchpad – until now.

MIT researchers have used the power of 3D printing to successfully create a replica of the overpass that was rejected for being too radical for its time.

The mini version was found to remain stable and strong without the use of any mortars or fasteners, which is how the Renaissance man had envisioned it.