There's one of these at the Houston Museum of Natural Sciences. http://www.hmns.org/exhibits/special-exhibitions/the-chronophage-clock/ http://www.hmns.org/exhi

There's one of these at the Houston Museum of Natural Sciences. http://www.hmns.org/exhibits/special-exhibitions/the-chronophage-clock/ http://www.hmns.org/exhibits/special-exhibitions/the-chronop...