Link them and write a short sentence to describe what they are about.
https://ciechanow.ski/mechanical-watch/
This website is incredible if you are the type of person who LOVES knowing how things work. The link I posted is to his mechanical watch post, but go to his archive and look through his other content. Every topic is filled with a series of interactive elements that REALLY shows you how something works. I think his internal combustion engine post is awesome as well. If you like this kind of thing and want to support it, he has a patreon too.
https://www.geogridgame.com/ - daily quiz based on countries/flags
I think that’s about it; I tend to stick to the things I’ve been using daily, none of which are that small.
https://solar.lowtechmagazine.com/
A solar powered website about past and forgotten technologies and how they can inform sustainable energy practices
Why does the website literally look like shit? It wouldn’t cost them any more energy to serve better CSS. Whose idea was brown on brown?
Looks like it’s inspired by Solarized to me. I kinda like it actually, much better than black text on white.
neal.fun is probably sort of known because a lot of his individual sites have gone viral, but just look through the whole catalog, there’s some amazing stuff in there