Arizona PBS Previews

NOVA: Building the Great Cathedrals

Preview | 30s

"Building the Great Cathedrals" – Soaring atop a spider web of masonry, Gothic cathedrals are marvels of human achievement. But how did medieval builders reach such heights? (Also Thu. 12/24 at 3 a.m.; Sun. 12/27 at 1 p.m.)

Aired: 12/23/15

Expired: 12/23/15

Rating: NR

Problems Playing Video? | Closed Captioning

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