Griff knows I like volcano pictures and man vs. nature pictures, and so he has sent along an excellent example of both.
These fellows are appantly trying to divert lava from Mt. Etna. The earth itself has burped up molten rock at 4000 degrees, and it slowly trickles its way down to where you are, killing everything in its path. You have to re-direct it at the very last minute. Good luck.