Seeking to make bike paths safer and more available in the evening and night hours, urban planners in Lidzbark Warminski, Poland just revealed a new glow-in-the-dark bike lane. The path is made from small crystal-like particles of phosphor named ‘luminophores’ that charge during sunlight hours and can glow for up to 10 hours. The lane was built by TPA Instytut Badań Technicznych Sp. z o.o who were partly caused by Studio Roosegaarde’s remarkable solar-powered bike path in the Netherlands mentioned here in 2014. Unlike the Netherland’s concept which uses solar-powered LEDs, this new path in Poland needs no external power source. The design is currently being experimented to see how it endures regular wear and tear.