"Sublime beauty" refers to something that is so incredibly beautiful or awe-inspiring that it goes beyond ordinary beauty. It is a kind of beauty that evokes intense emotions and a sense of transcendence or greatness. Full definition
Women were traditionally «relegated to the realm of the beautiful» — to be beautiful, but not to capture sublime beauty raw in the wild as male landscape painters did. (pasadenaweekly.com)
The Black Sea's Undersong imagines an apocalyptic, subterranean landscape that evokes a terrible and sublime beauty of the kind described by philosopher Edmund Burke, who wrote, «Whatever is qualified to cause terror is a foundation capable of the sublime.» (talleydunn.com)