While you are in Madrid, don't miss the chance to visit Spain’s national museum, Reina Sofia. On a 1.5-hour guided tour led by an art historian, explore the highlights of this museum including the collections of Spain's two greatest 20th century masters, Pablo Picasso and Salvador Dalí. Stand in front of the most famous masterpiece in the museum, Picasso's painting 'El Guernica.' Discover the history behind the paintings of the modern period. This tour can be conducted in English, Spanish, French or Italian.