Highest museum in a building

The highest museum in a building is 426.875 m (1,400 ft) high at The Clock Tower Museum, and was achieved by Royal Commission for Makkah City and Holy Sites, in Makkah, Saudi Arabia, on 5 January 2026.

The Clock Museum inside the clock tower offers a fascinating journey through the history, science, and artistry of timekeeping. Set within the tower itself, the museum showcases an impressive collection of historic and contemporary clocks, intricate mechanisms, and interactive exhibits that explain how time has been measured across different civilizations.