One World Trade Center, the tallest building in the western hemisphere and a famous modern landmark, is engineered to be the safest and strongest skyscraper ever built. This episode follows the final year of exterior construction, culminating with the milestone of reaching the symbolic height of 1,776 feet. For head of construction Steve Plate, as well as scientists, engineers, iron workers and curtain wall installers, this is a construction job suffused with the history of the site and a sense of duty to rebuild from the ashes of Ground Zero.

Encoded with permission for digital streaming by Infobase on August 22, 2014. Classroom Video On Demand is distributed by Infobase for Films for the Humanities & Sciences, Cambridge Educational, Meridian Education, and Shopware.

One World Trade Center (1:28) -- One World Trade Center Concept (2:29) -- Constructing One World Trade Center (2:04) -- One World Trade Center Glass Envelope (2:47) -- Curtain Wall Installation (2:48) -- Engineering One World Trade Center (2:14) -- Hanging Corner Panels (2:38) -- One World Trade Center Core (2:32) -- Concrete Quality Control (2:23) -- Structural Security (1:51) -- Pouring Logistics (1:52) -- Rewriting the Building Code (2:26) -- Construction Resilience (1:41) -- Hurricane Sandy (2:16) -- One World Trade Center Spire (1:20) -- Spire Transportation (2:53) -- Spire Engineering (4:11) -- Elevator Installation (2:19) -- Finishing the Curtain Wall (1:11) -- One World Trade Center Beacon (1:33) -- Lighting a Monument (2:56) -- New York Iron Workers (3:48) -- One World Trade Center Completion (2:20) -- Credits: One World Trade Center: Super Skyscrapers (0:26).