The 10,000 Year Clock (or sometimes called as Clock of the Long Now) is a clock designed to keep ticking for 10,000 years, with no electrical parts, its entirely

The 10,000 Year Clock in a place where it is comfortable and casual.

mechanical. After just 150 years, the Clock of the Long Now is being destroyed, as London's Science Museum collapses around it, However the real clock was never completed, this prototype stopped within the first years without anyone around to rewind it.