The Weapon That Ended It All?

The towering black metallic structure loomed ahead like a silent symbol of destruction, its wide base reflecting faint glimmers of the subtle yet eerie dark green glow emanating from the cracks in the ground. 

Asher walked cautiously, his boots crunching softly on the fragmented stone, his sharp eyes scanning every detail of the desolate surroundings.

Looking down at the fissures sprawling across the ground like veins, he muttered, "This entire place seems riddled with cracks, almost as if an earthquake destroyed everything. But I doubt a mere earthquake could destroy what was probably a magnificent city or kingdom. Whoever these 'immortals' were, they must have built this place to last."