The presence of the humans in the Mexican territory has left important archaeological findings of great importance for the explanation of the habitat of primitive man and contemporary man. The Mesoamerican civilizations managed to have great stylistic development and proportion on the human and urban scale, the form was evolving from simplicity to aesthetic complexity; in the north of the country the adobe and stone architecture is manifested, the multifamily housing as we can see in Casas Grandes; and the troglodyte dwelling in caves of the Sierra Madre Occidental.  Urbanism had a great development in pre-Columbian cultures, where we can see the magnitude of the cities of Teotihuacán, Tollan-Xicocotitlan and México-Tenochtitlan, within the environmentalist urbanism highlight the Mayan cities to be incorporated into the monumentality of its buildings with the thickness of the jungle and complex networks of roads called ''sakbés''. Mesoamerican architecture is noted for its pyramids which are the largest such structures outside of Ancient Egypt.