The Large Hadron Collider near Geneva, Switzerland does some pretty cool experiments. They recently had a webcast of one of their experiments. (30 March 2010)
"The first high-energy collisions were achieved at 13.06 today at all four points of the LHC ring. Collisions occurred after a few attempts at injecting and ramping beams in the morning. Before the collisions, there was a mixture of excitement, expectation, fear and apprehension in the CERN Control Centre. Nobody had ever attempted to make two proton beams collide at 3.5 TeV before. Only Nature produces collisions like this routinely, in the processes that yield cosmic radiation, but in a way that makes it very difficult to extract meaningful data."
"LHC First Physics : First collisions in the LHC's experiments, afternoon of March the 30th, 2010." Large Hadron Collider
Large Hadron Collider Experiment Video
Here's a short tour and description of the LHC.
"The Large Hadron Collider Introduction." Large Hadron Collider
Large Hadron Collider Introduction