Are the aetherytes not a glorious invention? I can only imagine how inconvenient it must have been for adventurers when the Calamity disrupted the aetherial flow and made instantaneous travel all but impossible.
The aetheryte here is relatively new, of course. And this wonderful tower was built to protect it.
It is called "Josselin's Spire" in honor of the captain of the first ever company of Wood Wailers. Fascinating, wouldn't you agree?