By Cat DiStasio
As we march into toward the future, our infrastructure needs to evolve. Fortunately, innovators are integrating energy-generating properties into the very roads that lead us forward. Solar panels can now be applied directly to a road's surface and driven over countless times before showing any signs of wear. Other next-gen roads automatically melt snow, reduce noise pollution, and even delight the public with artistic inspiration. Follow along for a trip around the world on pathways that generate clean energy for the communities they connect.