perhaps norse mythology stuffs so like the midgard mountains and they could be a central range with high peaks and deep valleys. the tallest peak, jotunheimr summit, would have a very nice view. and alfheimr valley i think is like a lush, enchanting valley filled with vibrant foliage n' cute animals or sth, perfect for gathering resources
and niflheimr glacier could be an icy, treacherous region in the north, with hidden caves and icy structures.
and some structures, ig:
valhalla hall is like a grand stone hall atop jotunheimr summit, with high ceilings and large wooden tables. the rasil tree should be an enormous, ancient tree in alfheimr valley, surrounded by stone pillars and glowing runes (glowstone or sea lanterns could be nice). dwarven mines of svartalfheimr are network of tunnels and rooms within the mountains, rich with ores n' stuff. i forgot the mythological stuffs, 😠so umm, the eternal fire of muspelheim is just a fire in a hidden cave, using netherrack and lava to create a never-ending flame. mirmir's well is, well(hahaha i'm so funny hahahahahhaha) a mystical well in a secluded part of alfheimr valley, surrounded by ancient trees and stone ruins. oooOOOo hel's realm could be a dark eerie area in the depths of niflheimr glacier, with soul sand, blackstone, and blue flames (soul fire) ok that's it ig, just a suggestion plz don't burn yourself out, or else the moth cult will come for you, and take care of you so much until you can't handle it anymore and you will start taking care of yourself, okie buh-bye :3
