PHOTO GALLERY: Children explore various vehicles during Tons of Trucks event

Families wait their turn to climb inside two trucks from I-70 Towing and Recovering on Wednesday at Tons of Trucks. The annual event allows children to explore a variety of trucks and municipal vehicles, including dump trucks, fire trucks and backhoes.   |  Katie Alaimo

A little boy climbs inside a U.S. Postal Service delivery truck at the Tons of Trucks event on Wednesday in Cosmopolitan Park. Children had the opportunity to meet drivers, firefighters and police officers while exploring the inside of trucks and tractors.   |  Katie Alaimo

Yoon-Seoh, 3, right, is held by her father as she reaches for the side of a fire engine at the Tons of Trucks event in Cosmopolitan Park on Wednesday. Both kids and parents had the chance to play and explore the inside of the trucks at the annual event.   |  Katie Alaimo

Iris Mueller, 1, is lifted off a John Deere tractor as her brother, Grant Mueller, 7, sits on one of the tires at Tons of Trucks in Cosmopolitan Park on Wednesday. Despite the threat of rain, families had the chance to explore and play inside tractors, police vehicles and fire trucks.   |  Katie Alaimo

Connor England, 3, honks the horn inside the BRRT BUSS on Wednesday at the Tons of Trucks event in Cosmopolitan Park. Connor was able to honk the giant school bus horn once before being helped down.   |  Katie Alaimo