Rothesay Castle is a historic fortress located on the Isle of Bute in Scotland. Built in the 13th century, it served as a royal residence and played a significant role in the region's history. The castle features a circular design, with thick stone walls and a central courtyard, showcasing medieval architecture. Today, Rothesay Castle is a popular tourist attraction, offering visitors a glimpse into Scotland's past. The site is managed by Historic Environment Scotland, and its well-preserved ruins allow guests to explore the castle's history and enjoy scenic views of the surrounding landscape.