The images of Pablo Lopez Luz are sensitive to the tensions in the urban landscape, expressing the relationship of city dwellers to their environment and, in particular, to those tensions in which the collective memory is encrypted. This is the spirit that informs the artist's photo essay about various buildings in the capital city constructed with volcanic stone, a material that evokes the massive forms of pre-Columbian architecture. The enormous metropolis, frequently shaken by seismic activity, is spread out under the gaze of Popocateptl, over 5,000 meters high, and has itself encroached on the slopes of the Ajusco, a dormant volcano lying to the south.