Leeds Castle was built on islands in a lake formed by the River Len. Dating back to 857, it was the favorite residence of King Edward I and a dwelling for Henry VIII's first wife, Catherine of Aragon. The castle underwent significant renovations in the 19th century, giving it its current Tudor-style appearance. Today, it is a popular tourist destination with attractions like a maze, an aviary, and even a museum of dog collars. You can explore the castle grounds, play areas, and accommodations, making it a fun day out for everyone.