Are there any normal blurays that have floored you like some of the good 4ks do?

I personally only buy 4ks because ever since I watched The Thing for the first time I've been obsessed with how good movies can look. That being said, there are levels to these things and only certain 4k discs actually blow my mind like that (e.g. The Godfather, Days of Heaven, Pulp Fiction). Given that there are levels of quality for blurays as well, are there any really good ones that blew you away even without the HDR? Or are they really just for movies that don't have a 4k?