The Thyssen-Bornemisza National Museum, also known as the Thyssen, is a renowned art museum located in Madrid, Spain. It's part of the city's "Golden Triangle of Art", alongside the Prado and the Reina Sofía national galleries. The museum houses over 1,600 paintings, once the second largest private collection in the world, and fills the historical gaps in its counterparts' collections with works from various schools and periods. The collection was started in the 1920s by Baron Heinrich Thyssen-Bornemisza and later expanded by his son. Initially housed in Lugano, the collection was relocated to Spain in 1992 after the Baron's marriage to Carmen "Tita" Cervera, a former Miss Spain, who influenced the move. The Spanish Government bought 775 works for $350 million, and these pieces are now in the purpose-built museum in Madrid. The collection spans eight centuries of European painting, with highlights including early European painting, Renaissance, Baroque and Rococo works, North American paintings from the 18th and 19th centuries, and a large collection of twentieth-century modern art. The museum continues to evolve, with the Baroness remaining actively involved in its operations.