The Hub ballroom burned to the ground early Wednesday in Edelstein, which is about 15 miles north of Peoria.
Authorities say the fire started about 2:45 a.m. They don't yet know what caused the fire.
The Hub was built in 1938 by the owner of the Potter Implement Co. to show off the farm equipment he sold. But he changed his plans after an opening day dance drew a big crowd.