As a kid, did you ever think using giant LEGO bricks to build houses and stuff would be cool? Well, people driving through the Wuppertal, Germany, are living the dream. https://www.instagram.com/p/Bqf_rg4Ax-J/?utm_source=ig_web_copy_link Sort of. A few years ago, the city commissioned German street artist Martin Heuwold of MegX to turn one of its concrete (and thus...