A couple of posts ago, I mentioned the spectacle of the equinox at the Mayan site of Chichen Itza (one of the New 7 Wonders of the Ancient World).
I had a look on Youtube and indeed there are some videos of the event. Nice, saves us all having to join the madding crowds.
Here's my pick of the crop:
Paco, a Mayan guide at Chichen Itza, explains the whole thing to a TV reporter.
Atmospheric little Chichen-equinox movie, with Pink Floyd music.