Artists and engineers from every corner of the planet bring their ideas and designs to build a huge variety of art installations on the playa. This year's installations included a giant orb 100 feet in diameter and a five-story sphere covered with a moving skin of origami shells and radiant spikes illuminated with over 100,000 LEDs. Many of the art installations including "The Man" and "The Temple" are burned to the ground at the end of the event to follow one of its main principles, which is "leave no trace." On top of all of this, there are tons of mutant vehicles, some of them with massive sound systems and world renowned DJs, that ride through the playa with parties that start at sunset and finish way after sunrise.