The Pantheon has had lots of maintenance done to it over the years. Even the Hagia Sophia is currently being renovated. Buildings deteriorate. They need main

The Pantheon has had lots of maintenance done to it over the years. Even the Hagia Sophia is currently being renovated. Buildings deteriorate. They need maintenance. The only question is how well you engineer in the ability to do that maintenance. Or you can tear it down every so often: See: https://www.smithsonianmag.com/smart-news/this-japanese-shrine-has-been-torn-down-and-rebuilt-every-20-years-for-the-past-millennium-575558/ https://www.smithsonianmag.com/smart-news/this-japanese-shri...