Beautiful 

Beautiful (vs. ugly)

This belief concerns the overall and typical aesthetic quality of the universe. It holds that beauty, of all different types, pervades all things. Its opposite is the belief that ugliness, in all its forms, is the defining quality of most things and situations.

He looked around, as if he was seeing the world for the first time. Beautiful was the world, colorful was the world, strange and mysterious was the world!
— Hermann Hesse, the moment of Enlightenment, Siddhartha, 1922

With Interesting, Beautiful is central to the big-three primal Enticing. It is thus highly predictive of a variety of curiosity and exploratory behaviors, among other things.