With a height of 1,121 feet (342 m), the 60-story skyscraper is the highest structure in Philadelphia and the Commonwealth of Pennsylvania, the fourteenth largest structure in the United States, and the tallest structure outside of Manhattan and Chicago. The building was completed in 2016 and is currently the second tallest building in the city. The Comcast Building is also the first high-rise building in Philadelphia to be built since the 1970s. When it was unveiled to the public in 2015, many people praised its design and innovation while others criticized it for being too big and unnecessary. The building's tenants include Comcast employees as well as other companies like Airbnb and WeWork. Comcast owns one of the most popular cable television service providers in the United States. The company was founded in 1980 by Ralph J. Roberts IV and David L. Cohen. Roberts was the chief executive officer until his death in 2013 when she took over the position. Cohen remains as chairman of the board. The Comcast Building is located at 11th and JFK Boulevard in Center City, right across from the Art Museum and Benjamin Franklin Parkway. It has 25 floors above ground and three below-ground levels that contain about 5,000 square feet (460 m2) of space for parking garage equipment.