Hay Castle is a historic structure located in Hay-on-Wye, Wales. Originally built in the 12th century, it served as a defensive fortification and has undergone various renovations over the centuries. The castle features a mix of architectural styles, reflecting its long history and the changes in design trends. Today, Hay Castle is a cultural hub, housing a range of events and activities. It is surrounded by beautiful gardens and offers visitors a glimpse into the past, showcasing artifacts and exhibitions that highlight the castle's significance in Welsh history.