The term PRADO PIECES is a reference to the Prado Museum in Madrid, Spain. The crossword solutions for this term are ART, which stands for the museum's collection of artwork. The Prado Museum is one of the most important ART museums in the world, and it houses some of the greatest masterpieces from the Spanish Golden Age, as well as works from other European masters. Its collection includes paintings, sculptures, drawings, prints, and other works of ART.