A point of interest, or POI, is a specific point location that someone may find useful or interesting. ... The term is widely used in cartography, especially in electronic variants including GIS, and GPS navigation software. In this context the synonym waypoint is common. -- Wikipedia
As well as having a position (i.e., coordinates), a POI will usually have some of the following: a name, a code/description, or some quantitative measures related to the application domain.