On September 28, 2013, a camera was brought up to the spire of the newly built Freedom Tower.
It took over 500 photos in a five hour span, and photographers then spent weeks stitching the pictures together for one massive and zoomable panoramic image.
TIME negotiated with the Port Authority of New York and New Jersey and got access to the tower for the unprecedented 360 degree interactive image.
Take a look at the amazing results for yourself: http://wtc.gigapan.com/wtc/
The video below from TIME shows the process behind creating this masterpiece.