Jicamarca Radio Observatory
The Jicamarca Radio Observatory (JRO) is the equatorial anchor of the Western Hemisphere chain of Incoherent Scatter Radar (ISR) observatories extending from Lima, Peru to Søndre Strømfjord, Greenland. JRO is the premier scientific facility in the world for studying the equatorial ionosphere.
Source: Wikipedia — Jicamarca Radio Observatory (CC BY-SA 4.0)