"A skyline is the outline or shape of terrestrial objects viewed near the horizon. It can be created by a cityscape or landscape, by human intervention ...
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in a rural setting, or in nature where the sky meets buildings or landforms. Skylines serve as a visual "fingerprint" for a city, as each city is unique. Hence, television programs and films often display the skyline of a city to indicate a location or to establish the setting.
The term The Sky Line of New York City was first introduced in 1896, when it was the title of a color lithograph by Charles Graham for the color supplement of the New York Journal." - (en.wikipedia.org 12.01.2022)