Machu Picchu Base Admiralty Bay. Machu Picchu Base conducts annual scientific expeditions to Antarctica. The base carries out a variety of scientific projects such as research into krill and its potential as an alternative human food source, as well as geological, biological, hydrographic, and geophysical research, under the provisions of the Antarctic Treaty. The base operates radar measuring upper atmospheric winds, and supplying data on the deterioration of the ozone layer. As Antarctica is a continent of valuable strategic, ecological, and economic importance, Peru has an interest in maintaining its status as a non-militarized, nuclear-free zone of peace, and in preserving its environment,
Machu Picchu found in Cusco and the Temple of the Sun found in Pisac, in having what Bingham described as a "parabolic enclosure wall". The stonework is of ashlar quality. Within the temple is a 1.2 m by 2.7 m rock platform, smooth on top except for a small platform on its southwest quadrant. A "Serpent's Door" faces 340°, or just west of north, opening onto a series of 16 pools, and affording a view of Huana Picchu. The temple also has two trapezoidal windows, one facing 65°, called the "Solstice Window", and the other facing 132°, called the "Qullqa Window". The