12 Historic Grandfather Clocks Worldwide

12. The St. Martin's Church Clock (Germany)

11. The St. Stephen's Cathedral Clock (Austria)

10. The Graz Clock Tower (Austria)

9. The St. Mary's Church Tower Clock (Poland)

8. The Rouen Cathedral Clock (France)

7. The Salisbury Cathedral Clock (England)

6. The Zytglogge Clock Tower (Switzerland)

5. The Prague Astronomical Clock (Czech Republic)

4. The Lund Cathedral Clock (Sweden)

3. The Strasbourg Astronomical Clock (France)

2. The Wells Cathedral Clock (England)

1. Llangollen Museum Clock (Wales)

7 Earliest Timekeeping Devices Known to Man