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2 videos returned over 1 pages.

Carved from a million pounds of stone, soaring effortlessly atop a spider web of masonry. Gothic cathedrals are marvels of human achievement and artistry.
Contributor: Jason Evans
Views: 364
Date Added: 31/08/2016
More in: Default
Duration: 01:02:08
NOVA presents a groundbreaking shows that investigate engineering mysteries of the ancient world with the help of dramatic hands on experiments.
Contributor: Jason Evans
Views: 358
Date Added: 07/09/2016
More in: Default
Duration: 00:53:52