The largest four-faced clock in the USA is the Allen Bradley Clock Tower in Milwaukee, Wisconsin. The diameter of its face is 40 feet 3.5 inches, and its minute hand is 20 feet in length. If you are a bug sitting on the very tip of the outer end of the minute hand, how fast are you traveling?

You, as a bug, are traveling the circumference of a circle with radius 20 feet. It takes you one hour to make the trip. You travel 2·20 feet per hour = 40 ft/hr ≈ 125.7 ft/hr.

We can play with this:

More or less half an inch per second (almost exactly 1 cm/sec).