What is Burning Man?
From http://www.burningman.com/first_timers/:

Once a year, tens of thousands of people gather in Nevada's Black Rock Desert (also known as "the playa") to create Black Rock City, a temporary metropolis dedicated to community, art, self-expression, and self-reliance. They depart one week later, having left no trace whatsoever.

Even considering going to Burning Man for the first time can be daunting. And while it's true that Burning Man is not for the faint of heart, with some research, preparation, and planning, an experience -- and opportunity -- beyond your wildest dreams awaits you. In Black Rock City, you're guaranteed not to be the weirdest kid in the classroom. And you'll become a part of the growing community of Burners who are active year-round, around the world ... ensuring that the fire of Burning Man culture never goes out.