Durham Castle is a Norman castle located in Durham, England. It was originally built in the 11th century to defend the city from the Scottish invaders, and it has served as a residence of the bishops of Durham for over 900 years. Today, the castle is part of Durham University, and it is home to many university departments.

The castle has a rich history, and it played a key role in the Norman conquest of England. It was built by William the Conqueror's son-in-law, the Bishop of Durham, and it was later used as a military stronghold during the English Civil War.

One of the most notable features of the castle is the Norman chapel, which is the oldest surviving building on the site. The chapel dates back to the 11th century, and it is a fine example of Norman architecture. The castle also has a great hall, which was built in the 14th century and is a popular venue for weddings and other events.

The castle's extensive grounds include a beautiful courtyard, gardens, and a terrace that offers stunning views of the city and the River Wear. Visitors can take a guided tour of the castle, explore the grounds, or attend one of the many events that are held here throughout the year.