The modern world is fascinated with skyscrapers -- the taller the beautiful. The Comcast Center in Philadelphia is a proof of this obsession. As the tallest building the whole state of Pennsylvania and the 15th tallest in the entire United States, it has a total height of 975 feet and is primarily made out of glass. The building has a total area of 1,250,000 square feet with 56 out of its 58 floors can be occupied.

The Comcast Center was built in such a way that it has a central core made out concrete with floors framed with steel. The structure is cladded with glass curtain which is only a bit tinted and does not reflect too much light and is minimally emissive. The building narrows inward as it gains height and as it nears the top, two cutouts can be seen at both the north and south ends of the building. Aside from its beautiful glass exterior, what makes Comcast Center unique is that it holds the larges liquid column damper in the United States in the form of the 300,000-gallon capacity double chambered concrete which plays a vital role in the stability of the building by preventing it from swaying too much.

The Comcast Center also holds currently the distinction of being the United States? tallest environmental friendly structure when it was awarded with a gold Leadership in Energy and Environmental Design or LEED rating in 2009. The design of the building was able to bring down the water consumption inside the structure by 40 percent and decrease heat-island effect by a dramatic 70 percent. The glass curtain exterior also allows 70 percent of natural light to go inside the building while blocking 60 percent of the outdoor heat to enter. Thus, it is able to reduce artificial light dependence and the use of air-conditioning was lessened.

Aside from office spaces, the Comcast Center also features a generous space for restaurants as well as a retail area popularly called The Market. Another unique feature of the building is the plaza fronting it named Plaza Caf? at Table 31. From the plaza, tenants and visitors would see a beautiful dancing fountain.

Just like any other skyscrapers found across cities in the United States, the Comcast Center also features an interesting exterior lighting crafted by Quentin Thomas Associates. The fa?ade of the building is predominantly composed of white LEDs similar to what is being used inside the building. At the corner spandrels in each floor, LEDs facing both facing up and down can be found. A total of 4,100 LEDs were used to create the illusion that the only light source are the spotlights found at the ground level. The exterior lighting of the Comcast Center also changes in honor of special events such as the Breast Cancer Awareness Month when the lighting is pink.