For nine days out of the year, thousands of people flock to the middle of the Nevada desert for Burning Man, an annual festival with art, music, and a massive wooden man on fire.

Known as “burners,” attendees come from all over the world to live in the temporary Black Rock City, which is rebuilt each year before the festival itself begins. Organizers of the festival claim that the whole point of building a temporary city is to “inspire a sense of culture, community, and civic engagement.” The festival also prides itself for being the largest “Leave No Trace” event in the world.