IMO no such thing in LOS. All the ones I visited were ugly, badly planned ( is there such a thing as planning in LOS? ) and had awful traffic.
The only town I liked was Phayao and even that was a traffic disaster.
The best they can do is have small areas that are nice, eg the White Temple in Chiang Rai, though even that was ruined the last time I visited it.
Thailand has many lovely places, but none, IMO, in cities.
Whenever I saw a Chinese city on tv I wished Thailand had cities like they do. I even asked a Chinese that used to live there and she said they are as beautiful as those on tv. Even Pattaya can't build a decent waterfront walkway.