It is comparatively newly built structure. One world observatory is a glass building and has quite a unique architecture. If you stand close to the building and look up the building will look like pyramid. The building offers observatory on the 100, 101 and 102 floors. These floors are almost 1,776 feet above the ground levels of the New York City. Another attraction in this building is the elevator. As you go up through the elevator the surrounding panels depict the transformation of the New York City. It shows how it has changed from a rural area to a metropolis