“Building the Great Cathedrals”

6:00pm

Gothic cathedrals are marvels of human achievement and artistry. But how did medieval builders reach such spectacular heights without the aid of modern equipment? As many of the great cathedrals now teeter on the brink of collapse, Nova ‘s teams search through them to investigate the architectural secrets that ancient builders used to erect these soaring walls crafted from just hand tools and stones for the purpose of trying to find a way to save them.