The Pennsylvania Farm Show is an annual agricultural exposition celebrating Pennsylvania's agriculture industry, held every January at the Pennsylvania Farm Show Complex & Expo Center, located in Harrisburg, Pennsylvania. It is the largest indoor agricultural event held in the United States. The Farm Show Complex houses 24 acres (97,000 m2) under its roof, spread throughout eleven halls, including three arenas. The annual event is free to the public and attracts over half a million visitors. This event was first held in 1917 as Pennsylvania's State Fair. The 2021 rendition of the Farm Show, however, was entirely virtual for the first time in its history due to the COVID-19 pandemic.