Cathedral of Light

Designed by architect Albert Speer, it consisted of 152 anti-aircraft searchlights, at intervals of 12 metres, aimed skyward to create a series of vertical bars surrounding the audience.

[1][2] The searchlights were borrowed from the Luftwaffe, which caused problems with its commander Hermann Göring, because they represented most of Germany's strategic reserve.

[2] A similar effect was created for the closing ceremony of the 1936 Olympic Games in Berlin by Eberhard von der Trappen with Speer's collaboration.

[6] Speer described the effect: "The feeling was of a vast room, with the beams serving as mighty pillars of infinitely high outer walls".

[1][3] It is still considered amongst Speer's most important works: ...the single most dramatic moment of the Nazi Party rallies... was not a military parade or a political speech but the Lichtdom, or Cathedral of Light...