The Duloc Castle, also known as Castle Duloc, is the official residence of the Royalty of Duloc and a towering structure located in the city's center. The castle is inspired by the rectangular keep of the French castle, Château de Loches.
The castle is disproportionately giant compared to everything else in the city of Duloc. It is a rectangular shaped building with four smaller towers on top of it, and it has a few windows. There is also a court yard where the tournament for the chance to rescue Fiona was held.
There are many rooms inside the castle. Rooms seem to have white colored walls and floors with blue colored curtains and banners. Known Rooms include,