An astronomical clock is a timekeeping device that not only tells the time but also displays astronomical information. It shows the positions of celestial bodies, such as the Sun and Moon, and often includes features like the phases of the Moon and the zodiac signs. These clocks combine artistry and science, making them both functional and visually appealing. Typically found in public spaces, astronomical clocks have been used since the Middle Ages. They serve as a reminder of humanity's fascination with the cosmos and our efforts to understand time in relation to the universe. Many famous examples, like the Prague Astronomical Clock, attract tourists and enthusiasts alike.