I think you guys should totally make a really awesome... wait for it... Spiral themed castle!!!!!!! I think just like the Celestia Castle, you should have portals to each part. So here is my idea for the structure... I thought it should be spiral shaped. And when you clicked the "home" button, you would end up in a wizard city themed room! with a little mini bartlebay! he he. Just take the portals, and you'd end up in every single place in the spiral. Except you might forget it's your home.