The Museo Nacional de Artes Decorativas is a hidden gem in Barrio de las Letras. It is dedicated to decorative arts, showcasing a vast collection of furniture, ceramics, textiles, and glassware from different periods and styles. The museum offers free admission on Saturdays and Sundays, allowing visitors to appreciate the beauty and craftsmanship of decorative arts throughout history. With its elegant displays and educational programs, the Museo Nacional de Artes Decorativas is a delightful destination for art and design lovers.