Clock Tower

The Astronomical Clock Tower of Prague, known as the Orloj, is not just a timekeeper — it’s a mechanical masterpiece and one of the most fascinating medieval devices in the world. Installed in 1410, it is the third-oldest astronomical clock ever built and the oldest one still in operation.

Mounted on the southern wall of the Old Town Hall, the clock shows more than just hours. It displays the position of the sun and moon, zodiac signs, and even the movement of celestial bodies — all represented with intricate gears, dials, and golden details. But what draws crowds every hour is the Parade of the Apostles, when small windows open and carved figures come to life in a symbolic ritual about life, death, and time.

For centuries, the clock has been a symbol of scientific ingenuity, blending art, astronomy, and storytelling in the heart of Prague.

In this activity, students will recreate the Astronomical Clock and explore how medieval cities combined knowledge, faith, and mechanics to understand and represent the universe.

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🛠️ What materials do you want to work with?

Choose how you want to explore each monument!Use the icons below to access resources on different platforms:

• 🗺️ Genially – Visit the interactive map with all the monuments

• 🎨 Canva – Open the classroom materials and printable activities

• ▶️ YouTube – Watch a tutorial video to learn more about the monument

• 🧱 Tinkercad – Access the 3D model to explore, copy, or customize the structure
  

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