A new type of high-tech pavement is being tested on one of the nation's historic roads in Missouri.
Called Solar Roadways, the system involves hexagonal blocks of roughly 4.4 square feet. Made of a special type of glass, they fit together, have traction like that of conventional pavement, and are solar panels that absorb sunlight. That solar energy is turned into electricity.
According to NBC News, the panels also feature LED lights that can be turned on and off to act as lane markers. There's also a heating element, which will help keep the buildup of ice and snow down.