To achieve this a nail is driven into the ground.
Oculus opening roof.
It is the centerpiece of the world trade center transportation hub.
Removing the glass ceiling allows light to flood the main hall of the oculus.
In addition to being a memorial the oculus is also a monument to life he added.
The day is honored by american flags hanging from the roof.
Under his jaw dropping proposal in 2004 he.
For one day a year the oculus opens its eye to the sky the oculus is located in lower manhattan next to the former twin towers.
The process of building this oculus starts with building up the opening which is made up of multiple layers of plywood cut to the correct radius.
The skylight however was not part of calatrava s original vision.
A string is tied to the nail and a predetermined length of string is then walked around in order to create the diameter of the pieces to be cut.
Since the hub finally opened in early 2016 the wings have parted in observance of the september 11th terrorist attacks.
Today coinciding with the time at which.
September 11th marks a very important day for the oculus.