Work features images by some of the most famous photographers of the past century
One warm June weekend 61 years ago, a scruffily bearded Argentinian on his way from Cuba to Cairo stopped over in Madrid. With almost a day to kill between flights, he did what any tourist of the time would have done: explored the city, visited a bullring, had breakfast and did a little shopping.
He was, however, no ordinary tourist. A photograph taken very early that Sunday morning shows the unmistakable figure of Che Guevara standing in boots, beret and battle fatigues, one hand hooked over his belt and the other clutching a newspaper.