In 2013, French designer Nathanaël Abeille started working with material expert Carlos Muniagurria to develop a way to turn common, inexpensive bricks into highly reflective objects capable of illuminating streets, apartments, and buildings that don’t receive direct sunlight–especially in dense cities. Working with Argentinian architect Francisco Ribero, his idea was to make one of Buenos Aires’s most depressed areas a bit nicer and more livable.