I ran across a pretty neat site that shows all the airborne aircraft at any given moment.
From a geek perspective, it's pretty cool.
http://planefinder.net/You can zoom with the mouse wheel. You can also click an individual aircraft to see it's trajectory, ID, speed, etc..etc..
In the lower right corner, is the equivalent site for seagoing ships.
Just in case you're ever bored. You can thank me then.

Bob
p.s. If your PC is old and slow, don't even try it.