MacLellan Castle is a historic ruin located in Gatehouse of Fleet, Scotland. Built in the late 16th century, it served as the residence of the MacLellan family, who were prominent landowners in the region. The castle features a distinctive tower house design, showcasing the architectural style of the time. Today, MacLellan Castle is managed by Historic Environment Scotland and is open to the public. Visitors can explore its impressive stonework and learn about its history, including its role in local conflicts and its eventual decline. The site offers beautiful views of the surrounding countryside.