 So apparently there is a Flickr photo pool which contains a bunch of crazy looking photos of tesla coils in action. This photo is of a tesla coil out in someones driveway in the suburbs arcing into the person's front yard. There are a bunch of other crazy photos as well which are mostly taken inside with smaller tesla coils. Apparently the streamers from the coils can set things on fire and tesla coils create ozone which is probably why this one is placed outside. Lastly these things make a bunch of noise which I'm sure the neighbors in this photo were happy with.
Check out a larger photo of this tesla coil plus other photos of tesla coils in action. Source: BoingBoing | 
