Ask HN: What are the best html5 and CSS3 only website you know?

Due to this recent manifesto about How to design a webpage to last https://news.ycombinator.com/item?id=21840140, the polemic about Google AMP https://news.ycombinator.com/item?id=21712733.

What are the best html5 and css3 websites without javascript you know?

Best in terms of design or website architecture