St Paul’s Cathedral (Wikipedia)

Christopher Wren (Wikipedia)

Statements

1. Wren spent a year producing a model for the cathedral, and then did not even use the design.

2. The design of the dome specifically was not finalised until they had already started building it.

3. According to legend, an implement flaw caused the miscalculations in the design, which Wren successfully covered up.

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Soundtrack Attribution:

Sneaky Adventure by Kevin MacLeod

Link: https://incompetech.filmmusic.io/song/4383-sneaky-adventure

License: http://creativecommons.org/licenses/by/4.0/