The theme exhibition will focus especially on the 1915 Panama-California Exposition, the event that first brought international attention to San Diego, organizers said.
The exhibition will include photographs of world fairs and provide information on famous structures built for such events, including the Eiffel Tower in Paris and the Space Needle in Seattle.
The first day of the San Diego County Fair will include an opening ceremony at 3:30 p.m. at the O'Brien Gate, which will include the raising of the American flag, music and celebrity guests. All gates will be opened at 4 p.m., with opening day admission set at $4.
KC and the Sunshine Band will headline the first Grandstand Stage concert at 7:30 p.m. The lineup at the fair's main concert venue includes country singer Gary Allan on Saturday; Peter Frampton and Cheap Trick next Wednesday; Christina Perri on June 17; and comic Dana Carvey on July 4.
Other stages will feature Mindi Abair & the Boneshakers, June 11; Vicki Carr, June 11; the Robert Cray Band, June 14; Tony Orlando, June 18; Three Dog Night, June 24; Tanya Tucker, July 1; and the Average White Band, July 2.
The fair, which runs through July 5, will be closed Mondays and a pair of Tuesdays, June 9 and June 16.