From Rhizome:

Globalmove.us implements a combination of the Google Maps API and subversive javascript written by the artists to create frenetic drawings (earthworks even) built of Google Maps UI elements. The ability for JODI's hand crafted javascript to accomplish this feat is explicitly allowed and defined by code that is written, hosted and provided by Google. Were this work to be preserved by a collecting institution, how would one ensure that changes made by Google to their Maps API does not destroy the functions implemented by the artist's code?

A Fata Morgana is an unusual and very complex form of mirage. It is usually seen in a narrow band right above the horizon. Fata Morgana mirages tremendously distort the object or objects which they are based on, such that the they often appear to be very unusual, and may even be transformed in such a way that it is completely unrecognizable. Fata Morgana can be seen on land or at sea, in polar regions or in deserts.[1]

Solarsteinn / Fata Morgana by Damon Zucconi is an application that removes the map from googlemap, leaving only the names of places. Like in the phenomena of optical illusions / mirage, Zucconi speculates on the actual existence of real locations:[1]

Seasoned explorers, vehemently insisting on what they had seen, set down mountains and islands on their charts where there was nothing but empty sky … Expeditions sent out later to verify these new lands sometimes saw the same fata morgana, further confusing the issue. Only by prolonging their arduous journeys, thereby observing a constant receding of the image, did they prove that the land was not there at all. [2]