The Long Now Foundation, was established in 01996 to creatively foster long-term thinking and responsibility in the framework of the next 10,000 years and explores whatever may be helpful for thinking, understanding, and acting responsibly over long periods of time. They are developing a “10,000 year clock”: a monument scale, multi-millennial, all mechanical clock as an icon to long term thinking, which will display the correct time for the next 10,000 years. The idea behind the Clock is to be an inspiration for long-term thinking, to help make thinking long term automatic and common, instead of difficult and rare. It is hoped to be an artifact to connect its visitors to the future in the same way relics from ancient civilizations connect us to the past. It even chimes.
There is a prototype now at the Science Museum in London. They are now looking at potential sites to house the clock in Texas or Nevada.