This skyscraper was built-in 1958 as a part of Rockefeller Center. Nowadays, it houses offices of the widely popular Time & Life magazines. As many other iconic Manhattan skyscrapers, it also appeared in movies (e.g. The Secret Life of Walter Mitty). Sadly, you cannot explore the interiors because the building is not open to the public.
The building is not open to the public.
Wikipedia https://en.wikipedia.org/wiki/1271_Avenue_of_the_Americas
Info http://www.emporis.com/buildings/114543/time-life-building-new-york-city-ny-usa
Address 1271 Avenue of the Americas, New York City, USA
Coordinates 40°45'38.215" N -73°58'51.793" E