Looking at the Plus Codes grid is a pretty powerful demonstration of just how skewed the de-facto standard map projection (Web Mercator) actually is:
It also never seizes to amaze me just how large Africa really is. Painfully obvious when flying across that continent, but easily forgotten when only looking at normal maps day in and day out.
The social network of the future: No ads, no corporate surveillance, ethical design, and decentralization! Own your data with Mastodon!