When I saw the Prague Astronomical Clock or Prague Orloj I was very impressed by its beauty. This is a medieval astronomical clock located in the Prague centre mounted on the Old Town City Hall in the main square. The dial displays the Sun and the Moon in the sky. Hourly, the clock shows the figures of the Apostoles moving in turn (The Walk of the Apostles). Before my visit I saw lot of images of this clock, but very few showing it in the detail. This is in my preferred shoot in that session.