Arrive in Madrid. Enjoy a leisurely tour of the Old Town, including Madrid de los Austrias, Puerta del Sol, Arenal Street, San Ginés Chocolateria, Plaza Mayor, and the Cuchilleros Arch. Visit the Reina Sofía Museum, expanded by Jean Nouvel, Caixa Forum by Herzog & de Meuron, and the Thyssen Bornemisza Museum. If time permits, visit the Prado Museum, one of the world's finest art galleries. Dinner and overnight stay in Madrid.