600-Year-Old Medieval Clock Shows the State of the Universe in Real Time
Prague's medieval astronomical clock is not just one of the prettiest timepieces you'll ever come across, it's also one of the most famous examples of its genre. Starting in the 13th century, astronomical clocks began springing up around Europe, using intricate functions to show information such as lunar phases, the position of the sun and moon, and the zodiac at any given moment.









































































