Planescape - Strays!
A tower in the far Outlands where seasons change irregularly and frequently, established by Eladrin to research this phenomena. It is on a tropical island surrounded by mangroves.
The tower is constructed of a unknown metal and is mostly rooms of vegetation connected by narrow corridors.
Lacking an easy portal to the Feywild it relies on portals in Oman for most trade.
Recently it has been suffering from a Slow Man infestation.