Skyscrapers Bottom View Plane 1640 X 2360. Skyscraper enthusiast website featuring buildings database, discussion forum and skyscraper diagrams. The first two decades of the twenty-first century represent a major milestone in skyscraper developments.

A skyscraper is a large continuously habitable building having multiple floors.
The reasons for building skyscrapers were clear, particularly in a city like New York, whose downtown district, Manhattan, could not expand very easily on a horizontal plane, limited as it was by the Hudson and East rivers.
Since the birth of the skyscraper, builders and engineers have continuously looked for ways to improve building methods and materials, in order to make structures stronger, taller, and lighter. Apart from upwards, there were not many directions in which Manhattan could grow. The first two decades of the twenty-first century represent a major milestone in skyscraper developments.