Three years in the making, these are a couple videos of the Mario Kart themed LEGO roller coaster constructed by builder scottmakesmocs. Now that is impressive. My last LEGO build? It was not that impressive, and my mom said if it was a finger painting it wouldn’t make the refrigerator door, even if I gave it to her on Mother’s Day. Still — three years? Even babies are conceived and born faster! What do they take, like two years?