Airplane racing.
Once popular around Europe and the United States, air races are now mostly a thing of the past.
But Reno's National Championship Air Races keep the tradition alive.
The event at Reno Stead Airport is accompanied by the kinds of performances you find at standard air shows, like stunt flying and jet fighters in formation.
But what really sets Reno apart are the races, when
Deadly crashes still occur despite strict safety rules, but the races go on. We've collected some of the best photos from the 2013 races, which offer a look at how fast and dangerous this sport can be.