Navigational markers

thumb|upright=1.3|An 18th-century painting of a ship with Table Mountain in the background, used by navigators as the landmark to sail around southern tip of Africa. A landmark is a recognizable natural or artificial feature used for navigation, a feature that stands out from its near environment and is often visible from long distances.

thumb|An inuksuk at the Foxe Peninsula, [[Nunavut, Canada]]