De Haar Castle is one of the largest and most luxurious castles in the Netherlands, located in the province of Utrecht. It was built in the 14th century and rebuilt in the Gothic Revival style by Pierre Kupps in the late 19th century. The castle is surrounded by extensive gardens and canals, with luxurious interior decorations, precious works of art, and beautiful gardens around it. It also often hosts events and is a popular attraction in the Netherlands.