The Thyssen-Bornemisza Museum, or simply the Thyssen, is an art museum in Madrid, located near the Prado Museum at one of city's main boulevards. It is known as part of the "Golden Triangle of Art", which also includes the Prado and the Reina Sofia national galleries. With over 1,600 paintings, it was once the second largest private collection in the world after the British Royal Collection. A competition was held to house the core of the collection in 1987-88 after Baron Thyssen, having tried to enlarge his Museum in Villa Favorit', searched for a location in Europe.