The Villa where Galileo designed his version of the first pendulum clock, but it was never completed.

This pendulum clock served as the first time standard in the United States, from 1904 to 1929. It achieved accuracies of 10 milliseconds per day, and were guaranteed to be at least within 30 milliseconds. By including a low thermal expansion pendulum, a low pressure tank, and a gravity remontoire, the error on the pendulum swing was reduced.

Dating from c. 1600, this is one of the few remaining clocks in the world that still feature ts original Verge and Foliet escapements. It has been moved and restored, and is now on exhibit in the Science Museum, London.

Said to be the oldest working clock in the world, it orginally used the Verge and Foliet escapements, which were later replaced a verge and pendulum, and when the clock was restored in 1956, a new Verge and Foliet was installed.