Today, in a simple way Machupicchu is divided in two main sectors: farming and urban. The Farming Sector is located just after entering from the tourist hotel; over here there are very broad artificial farming terraces; they are only some of all the ones existing in the region, as most of them are covered by thick vegetation. By the eastern end of the terraces there are five buildings that maybe served to house the farmers who cultivated this sector; those buildings are known as the " Farmers' Group" though Bingham called them "Outer Barracks". On the upper end of those terraces there is a small room having just 3 walls known as the " Watchman Post" constructed in a strategic place; from this point there is a broad view of the Urubamba canyon in two different directions. It is here, from where the Machupicchu classical pictures are taken. In the vicinity is the named "Funerary Rock" ; it is a loose boulder placed knowingly in that spot, carved as an altar with some steps and a ring. It is supposed to have served in order to carry out all the embalming process as well as for drying the mummies up. Nevertheless, it seems that this rock had also a certain relationship with solar observations. In the winter solstice, the sunlight is projected exactly towards this rock from "Intipunku" (Sun Gate) which is compounded by the buildings towards the east, on the pass, by the end of the Inka trail that is seen surrounding the Machupicchu Mountain. Further south from the "Funerary Rock" is the largest building in Machupicchu; it is a "Kallanka" that has 8 access openings on its front wall and 2 on the side ones. Because of its location near the trails, its dimensions and morphology, that building must have been a sort of " Tambo" and served as lodge for a large number of persons. Some authors name this building as "Headquarters" and some others as "Workshops".