Comment by AStonesThrow | Hacker News Reader

Comment by AStonesThrow | Hacker News Reader

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I don't know what threshold to aim for here -- by the way, neither of those two minor basilicas are cathedrals -- but let's navigate a few Wikipedia categories: https://en.wikipedia.org/wiki/Category:20th-century_Roman_Ca...

https://en.wikipedia.org/wiki/Basilica_of_the_National_Shrin... (consecrated 1920; dedicated 1959; minor basilica 1990)

https://en.wikipedia.org/wiki/Cathedral_of_Our_Lady_of_the_A... (1998-2002)

https://en.wikipedia.org/wiki/Main_Cathedral_of_the_Russian_... (2018-2020)

https://en.wikipedia.org/wiki/Holy_Resurrection_Cathedral (Japanese Orthodox; consecrated 1929)

https://en.wikipedia.org/wiki/St._Mary%27s_Cathedral,_Tokyo (1964)

https://en.wikipedia.org/wiki/St._Theresa%27s_Cathedral,_Cha... (2008)

As for Italy? Get a load of this "crown jewel": https://en.wikipedia.org/wiki/Jubilee_Church (2003)

A church is a cathedral if it's a bishop's seat, which GP's churches are not. But it seems silly to characterize the Sagrada Familia as "minor".

It's the official church title - "minor basilica". There are only four "major basilicas" in Rome.

The "silly familia's basilica" is in good company: there are 1,881 minor basilicas. That is relative to the 4 major ones, which are all in Rome.

https://en.wikipedia.org/wiki/Basilicas_in_the_Catholic_Chur...

St. Paul Outside-the-Walls was completed in 1840! Almost yesterday! However, re-consecration and construction continued after that. Interestingly, it seems that an automatic fire-detection and suppression system had been installed in the 19th century.

I looked up the Jubilee Church. Supposedly it has a roof that breaks down NOx. So I asked ChatGPT to do some napkin math and…

  Assuming ~1,200 m² of TiO₂-coated surface removing ~16 g NOₓ/m²/year → 1,200 × 16 = 19,200 g = 19.2 kg/year; with an average car emitting ~5 kg NOₓ/year (based on 15,000 km/year at ~0.33 g/km), the roof offsets ~3.8 cars annually.

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