And then, in 20 minutes, the right angled triangles began to appear on the screens.

And overlying this is the skin drape, which is a hugely complex three dimensional structure taking right angled bends here and there, having thin areas like the eyelids, thick areas like the cheek, different colors.

Designed as a local symbol of mourning, these poles, with their sharply angled roofs, remind viewers either of a peasant cross or a human figure with hands raised in prayer. Sandarmokh is the most important, and best developed, Russian site of memory.