The Barn is located at Old Bethpage Village Restoration . Also known as the Grand Exhibition Hall, The Barn was built for its primary purpose, The Long Island Fair, in 1995 as a replica of the original 1860 Mineola Fair Building. Recent renovations to the building such as heat, air conditioning, and bathrooms have turned The Barn into the most unique venue in Nassau County. The 8,000 square foot layout allows us to accommodate parties up to 300 guests. The high ceilings and wooden beams will be sure to leave your guests overwhelmed as they take a step back in time and into The Barn.