Introduction Historical context The natural setting About the disoccupation when discovered Description of Machu Picchu The agricultural sector The hanan section The main plaza and the urin section Wayna Picchu and the temple of the moon Reconstructing the past The productive activities Description of Machu Picchu The main plaza and the urin section ---------Select---------The Sacred Rockcomplex-------------------------The houses of the north------------------------The palace of threeportals-------------------------The collcas of the east-------------------------The mausoleum of theeast-------------------------The aqllawasi-------------------------The Crypt of the Condor-------------------------The houses below The palace of three portals (kimsa punku) South of the houses of the north, separated only by the passage which gives access to the second house, the so-called palace of three portals is found, whose configuration is very similar to the previous houses. Its western face, around 50 m in length, looks toward the main plaza and appears to be a large canvas with walls covered with mud and presumably painted and with three elegant portals with double jambs, each one of which gives entrance to one of the three different kanchas that are internally connected. Each kancha has a small vestibule from which it is possible to have access to the different patios. Apart from the three portals, there is another access to the palace located in the north wall of the palace, almost facing the entrance to the second house of those of the north. It is then possible that there was a connection between the occupants of that house and those of the palace. The three portals are built over the path that is born in the main portal of the houses of the north, on an elevated terrace, which , after passing south of the palace stops being flat and turns into a long and beautiful flight of steps which descends to the level of the plaza. It is important to note that in front of these north and south portals of the palace, on the other side of the path, there are two wayranas which had stone columns on their open faces. The northern wayrana has five windows which look at the plaza and the buildings across from it, while the southern has three. After crossing the small vestibules of the kanchas, in each case we pass to a central patio and then to a large reception room with three openings in the wall. The first kancha - the one to the north - has a chamber on the northwest corner and the third kancha - the southern one - in a symmetrical manner, has another, similar one on the southwest corner. The two chambers are differentiated in that the northern one has only one opening in the wall for access while that of the south has two. Each kancha, in addition, has chambers of less size contiguous with the small vestibules. The chambers of the first and third kanchas are also arranged in a symmetrical manner, are elongated and each has one opening in the wall for access. The chambers of the second kancha are two square and each has one opening in the wall for access. pag. 1 - 2