"Museo Nacional Centro de Arte Reina Sofía welcomes more annual visitors than the Prado, although its collection couldn't be more different. Traditionalists will prefer the Prado; this museum, however, is decidedly contemporary. The most famous work here is Pablo Picasso’s “Guernica,” a moving anti-war response to the bombing of the northern Spanish town of Guernica. Most of the galleries focus on 20th-century Spanish art, including many works by Salvador Dalí. In lieu of stern, gilt-framed portraits, you’re more likely to encounter video installations and free-form displays that showcase modern artistic expression. Like most popular museums, this place gets busy. Arrive early to get a head start on long museum lines, which reach their crescendo during the last two hours of the day—when admission is free." - Ramsey Qubein