One of the oldest Urban settlements in all of the American continent pre-European cultural development surviving within the mist of modern life's chaotic lust for power and profit witness to once upon-a-time human interaction with its natural context. curculio is an ancient prehispanic city from some 1500 b.c. located toward the south of Mexico City whose remains aside from its main pyramidal structure commonly referred to as the "Main basement" are to be found scattered around a number of nowadays everyday life city areas mainly ecological reserves. We begin by accessing the Cuicuilco main archaeological zone where we will walk up its main pyramid to discuss the city's position in the local landscape, so as to propose the possibility of the existence of a number of local conventions regarding calendarization, alignment with the real north and architecture.