All of these buildings are constructed in the least expensive way conceivable: concrete poured in place in wooden forms, over grids of hand-tied rebar. They are blocky, grey, and completely indistinguishable from one another. A couple of much taller buildings, twenty or thirty stories, loom over the district from a big intersection nearby, wind and birds circulating through their broken windows. They were badly shaken up in an earthquake during the 1980s and have not been put to rights yet.