Exciting views of the runways, overlooking one of the world's busiest international airports and easy access to the dynamic economy of downtown Atlanta are just some of the benefits of the One Hartsfield center. It is located on the fifth floor of a class-A office building with green credentials that include LEED certification and an Energy Star label for its operating efficiency. Close to Interstate 85, which links it with several major highways serving downtown Atlanta, the city's wider metropolitan area and beyond, the center offers surface car parking and bus services to Hartsfield–Jackson Atlanta International Airport and the nearby College Park rail station. The airport is a key engine of Atlanta’s economic growth and flies to destinations in the US, South America, Central America, Europe, Asia and Africa. Atlanta is the primary transportation hub of the south-eastern US and is home to diverse businesses, including national and global corporate HQs.