The popular webcomic xkcd has posted a massive black-and-white drawing called “Click and Drag”. Explore it from every possible angle by dragging your way through the image in its relatively limited frame. Explore artist Randall Munroe’s mountainous landscape from side to side, delve into the subterranean depths or sweep the skies looking for airplanes, levitating jellyfish and other oddities. It’s an amazing accomplishment, packed with Easter eggs, such as a Super Mario Bros.-esque series of pipes, which extend down, down, down into vertical caves with “walls worn smooth by billions of tumbling Mario corpses.” Browse a mashup of the full image here. This isn’t xkcd’s first ambitious art project. If you missed it, be sure to revisit Munroe’s awe-inspiring look at “Lakes and Oceans” around the world.