Children were busy at work in downtown Birmingham, Saturday.
Little ones put on their hard hats to go to work at the McWane Science Center for the Third Annual Big Machines Day. Crane Works and the McWane Center partnered up to make the event happen.
The staff says it gives children the chance to learn more about construction and engineering.
"It's amazing how all ages get so excited about it," Lilla Goodwyn, said. "The young and older kids...it's just amazing how the whole family can come out and really enjoy this event together."
Big Machines Day ended, Saturday, but workers at the McWane Science Center say more events will be coming next month.