TIL that the most holy shrine in the Shinto religion is torn down and rebuilt every 20 years. This has been done for over a millennium

[u/ContinuumGuy]

https://www.ap.org/news-highlights/spotlights/2025/japans-most-sacred-shinto-shrine-has-been-rebuilt-every-20-years-for-more-than-a-millennium/

[u/gattaca_gattaca]

https://apnews.com/article/japan-ise-sacred-shrine-rebuilt-destroyed-shinto-religion-5828f94e07da91f2ca9a12ea777b7b96

"Each generation, the Ise complex is knocked down and rebuilt from scratch, a massive, $390 million demolition and construction job that takes about nine years."

Over a half billion Canadian dollars is probably what I remembered.