Just like Krakow, Prague is blessed with a beautiful main square. The focal point for tourists is the 500-year-old astronomical clock. We never did figure out how it works, but it sure looks cool. In the photo above, the clock is at the base of the tower in front of the crowd of people.
Two spires from the square's Gothic Tyn Church.
When we left early for the train, we walked through the square at 6am and found only one other person. Certainly not the norm any other time of day.