Secret Mexico City

The forgotten café where Fidel Castro and Che Guevara used to meet, a tribute to the city's ghosts, a mammoth in the metro, a cave transformed into a shrine, an underground parking lot with mosaics dating from 1930, a Baroque altarpiece made from papier mâché, a village based on the principles of Thomas More's Utopia, secret masterpieces of colonial art in rooms only open around two hours a week, the largest roof garden in Latin America, the photo on which the Oscar statuette is modelled, the world's first building to be faced with a material that can trap urban smog, a road surface designed for praying while you walk, an urban artwork gem in the basement of a tram station ...