Near Munich, in Bavaria, Germany, is the Schleißheim Palace, where French filmmaker Alain Resnais shot his film Last Year at Marienbad in 1960. Nearby is the Dachau concentration camp, where thousands of people were killed between 1933 and 1945. An essay about the present and the past, beauty and horror, life and death.

Last Year in Dachau

These skyscrapers of stone dominated skylines for nearly a thousand years. Now, a team of scholars and builders investigates how they we went up, and why some of the tallest fell down. Embedded in stone and stained glass, they uncover a hidden mathematical code — ripped from pages of the Bible — that was used as a blueprint to build the great Gothic Cathedrals.

Building the Great Cathedrals

How did medieval engineers construct magnificent skyscrapers of glass and stone?