Surprisingly, the man who has built the world’s largest collection of Mexican art—paintings, sculptures, drawings, and prints that number 12,000—is Argentinian. Andrés Blaisten moved to Mexico in his 20s to study art at the Academy of San Carlos, in Mexico City. During his studies there, the work of fellow students began to catch his eye. He bought one piece, then another. Later, Blaisten specialized in 20th-century art, focusing on the Mexican School of Painting and the Breakaway Generation, which included Diego Rivera, María Izquierdo, and David Alfaro Siqueiros. Sixty-four works from Blaisten’s collection are now in Madrid, among them Rivera’s The Night of the Radishes and José Clemente Orozco’s Allegory of Mexico. —Elena Clavarino