Who among us hasn't dreamed of blowing something up? Put your hand down you liar! You know you have!
Anyway, I found this awhile ago through an article on Badass of the Week and I forgot to put it up here. I present to you all the NukeMap! Select locations, yields, detonations and any other number of configurable options to get a rough idea of the damage you can cause on a given location and the ensuing fallout.
The Tsar Bomba would easily have taken out all of South Texas. (Per my own configured settings.)
Also found that while looking up some info on nuclear explosions, because when I get bored I do random research for my own amusement. Usually on things like this. [shrugs]