"Packed with important artwork, this private residence of the Alba family (relatives still live on the second floor), has finally flung open its doors to the public. You could be forgiven for having flashbacks from the Prado here. It is packed with memorable works from El Greco, Titian, and Velázaquez just like the city’s most famous museum. Don’t miss Goya’s portrait of the 13th Duchess of Alba; if it looks familiar, that’s because until recently it was on loan to the Thyssen-Bornemisza. What is particularly special here, beyond the artwork display, is the large library onsite that includes handwritten work from Christopher Columbus (the largest collection in the world) and a first edition of Don Quijote by the famous Miguel de Cervantes. You’re going to find a lot here that you won’t spy elsewhere." - Ramsey Qubein