A celtic cross. Treading across the moors, with the grouse creaking in your ears, you happen upon a shrine to the Elder Gods, limned with eldritch light, and bestowing powerful gifts on those brave (or foolhardy) enough to venture near. Or, in a frosty graveyard, with the owls hooting in the trees, and the cold biting your frozen fingers, a shadow suddenly looms from the night, shocking you into stillness, whilst the trees claw at you with their gnarly fingers, and the chittering bats throw shadows through the creeping fog. Source: Objaverse 1.0 / Sketchfab