The Nieborów Palace built in 17th century. In baroque style. The palace belonged to the Radziwiłł family from 1774 to 1945. After WW2, both the palace and the garden of Arkadia were taken over by the socialist state and became subsidiaries of the National Museum in Warsaw in 1945.
Nowadays the palace serves as a museum of interior design of palace residences from the 17th to the 19th century, based on the surviving furniture and collections, featuring portraits of eminent personalities of the era, several thousand drawings and sketches, books including from the 16th century, porcelain and textiles.
