The Brother's Palace

The Brother's Palace is a huge mansion that is the residence of Steven Maximus and temporary residence of Emperor Snake and Empress Keagan. To access it you need a Universal Membership Card which is a purple card that is nearly unobtainable. Ambassadors and other high ranks can let you in and you can also get special access from King Steven which you will need to be verified by the Gatekeeper. The inside is not actually as fascinating as you would imagine, just a hallway to a few rooms, though it is a big house and has some pretty nice parts on the inside.

This mansion only serves as a residence to the highest leaders of TCE and that's it so no major advantages. A player can literally get a mega-mansion way bigger than this place with a lot of cool features if they buy it off a banker.