The CBS Building in New York City, also known as "Black Rock", is the headquarters of CBS Corporation. Located at 51 West 52nd Street at the corner of Sixth Avenue (Avenue of the Americas), the Eero Saarinen-designed building opened in 1965. It is 38 stories and 490 feet (150 m) tall with approximately 872,000 square feet (81,000 m²) rentable of space.