I was privileged this past summer to go to Prague and see this amazing clock first hand:
|Prague’s Astronomical Clock|
|Notice the astronomical symbols.|
More information than I can remember can be found at Wikipedia, so I won’t be too redundant here except to say that the clock tower includes astrological signs, statues representing among other things vanity, death, a philosopher, an angel, an astronomer and a chronicler, as well as the Apostles that march by every hour. It may even tell time!
In celebration of it’s 600th year, a video mapping has been produced that shows computerized projections right onto the clock tower depicting it’s history. Here’s a link to the video The 600 Years. It’s ten minutes long, but worth watching.