If all you see there is something "cool", you're missing the more rewarding depths. These symbols speak of a society which was at the other extreme end to the fragmentation, atomization, and attention span erosion we are experiencing today. This allowed them to elevate esthetics to a point we couldn't afford to today. I'm thinking here mainly of those ancient Mon[1] symbols – though something of their spirit lives on in the modern symbols also discussed in the article. Contemplating these evocative designs can help us build a bridge to a societal context that's otherwise almost incomprehensible to us.

Another thing I found fascinating: the way the symbol that marks a fire truck doesn't employ the red color we would expect in the West, and is instead based on the shape of an ice crystal. A bit like an amulet to ward evil away, there's some kind of atavistic magical function still afoot there.

[1] the wikipedia page linked from the article is worth a read: https://en.wikipedia.org/wiki/Mon_(emblem)