Calendar theme for 2022?

I’ve been thinking I should get out and do some photos for the 2022 weblog calendar but can’t decide what to do. These have been the themes so far:
2018: Historical images
2019: Brutalism
2020: Columns
2021: Stairs

I would love suggestions.

Also, this November is the blog’s 20th anniversary. I can’t think of anything suitable except maybe a redesign, but do we need new features?

Update: Here’s a quick history of the blog to explain my reasons for not having updated the look or the mobile version. This blog started in November 2001 on Blogger, with no commenting, and went on like that for some time. After a point, Google bought Blogger and discontinued the system I was using where Blogger kept the posts in its database and transferred them to the website via FTP. This was when the blog was on montreal.com.

I moved the site to WordPress, but WordPress simply could not import all the posts from the Blogger database – there were a lot. So I started fresh, with commenting this time, still on montreal.com – but then that server had a bad disk crash and I lost a lot of posts and comments (which still makes me sad – there was a lot of good stuff on there, from many participants). I got the domain mtlcityweblog.com and restarted again with a new WordPress install but no history.

Anyway, this is why a) the contents of the current blog only go back to 2017 and b) why I’m nervous about trying to move the whole thing to the latest WP and a new template. Yes, I can back it up and I do, but it may not be possible to keep the whole thing online if it goes blooey during an upgrade. There are more than 10,000 posts on here now, and nearly 33,000 comments.