Stone Titan Totem

Stone Titan Totems are Hardmode background objects that, when broken, summon Atlas. They are found naturally-placed in Forest, Snow, or Desert locations after Golem has been defeated.

Stone Titan emit a moderate glow, and will appear in the minimap in areas the player has already explored. They spawn one at a time, meaning that in a world there will only be one Totem at any time. They will respawn after two in-game days if they are destroyed regardless of whether or not the player defeats Atlas.

Sprite Credit
https://www.pinterest.com/pin/287737863668505061/