Eyrewool Castle is a historic structure located in Northumberland, England. It dates back to the 14th century and was originally built as a defensive fortress. The castle features traditional medieval architecture, including thick stone walls and a central tower, which provide insight into the building techniques of the time. Over the years, Eyrewool Castle has undergone various renovations and restorations. It is surrounded by beautiful landscapes, making it a popular spot for visitors interested in history and architecture. Today, the castle stands as a testament to the region's rich heritage and attracts tourists from around the world.