Next time you're in Baltimore, be sure to visit the Bromo Seltzer Arts Tower where you can see its gravity-driven pendulum clock. It's a beautiful mechanism with a very specific claim to fame: "The clockworks is the largest four dial gravity driven non-chiming clock in the world with the magnificent 24ft dials."

https://imgur.com/a/PjAv85o

https://www.bromoseltzertower.com/about/virtual-tour

(The elevator motors are also up there so there's a lot going on.)