In the Middle Ages for 150 years, monumental stone and glass vessels arose from the earth: the Gothic cathedrals. The builders will then cut, sculpt, pile up more stones than the Egyptians in 1000 years! Pharaonic projects, completely crazy and disproportionate technological challenges. This grandiose architectural adventure will forever change the city centers of our country. But above all, this documentary collection will take an interest behind the scenes, the unspoken, the struggles for power and influence and everything that accompanied this incredible metamorphosis.