Bridges come in all shapes and sizes, and they're an ancient method for spanning rivers, valleys, and canyons. Still, architects today are constantly finding new ways to design these traditional structures. Bridges that roll into balls, bridges that slowly glide across the water, and bridges that seem to part the seas—top architects have re-defined how we think of civic design.
Even old bridges have been updated in recent years by artists and designers, who have created light installations and yarnbombed some of the most famous bridges around the world. From bridges that have received creative renovations to new designs that challenge old school structures, these 20 Impressive Bridge Innovations will make you think of architecture in a whole new way.