Yes, glow in the dark bike paths!! The asphalt contains synthetic particles called “luminophores,” that emit power captured from sunlight at night, creating an electric blue color that lasts up to 10 hours. During the day, the path is a pretty blue color.
Apparently a lot of pedestrians and bicyclists are out at night in Poland and have a lot of accidents, especially in areas farther from cities. Right now only one path has these glow-in-the-dark powers but if they work well, more will follow.