The Louvre and the Prado are two of the most famous museums in the world. The Louvre is located in Paris, France and is one of the largest and oldest art museums in the world. It houses some of the most famous works of art, including the Mona Lisa and the Venus de Milo. The Prado is located in Madrid, Spain and is one of the most visited art museums in Europe. It contains a vast collection of European art from the 12th to the 19th centuries, including works by Velázquez, Goya, and El Greco. Both the Louvre and the Prado are renowned for their collections of art and are popular tourist destinations.