Dublin Castle is a historic complex located in the heart of Dublin, Ireland. Originally built in the 13th century, it served as a major defensive fortification and later became the seat of British rule in Ireland. The castle features a mix of architectural styles, reflecting its long history and various renovations. Today, Dublin Castle is a popular tourist attraction and a venue for state events and ceremonies. Visitors can explore its beautiful gardens, the State Apartments, and the medieval Record Tower, which is the oldest part of the castle. The site plays an important role in Ireland's cultural heritage.