>>715463281
That's actually the result of finsihing a side-quest BTW. WuWa has what's called Exploration Quests which result in major, permanent changes to the world at the end. This one quest ends with you saving two dragons (after literally cutting a giant tower in half, leaving it permanently broken in the map) and they enchant this giant dragon's corpse to spawn glowing spectral wings (when it's nighttime). Beforehand that specific area of the map is pretty grey and lifeless. Much like a typical FFXIV zone.
