This is the home of Bongus, and contains Shelves, as well as Bongus's computer. It is renovated every couple decillion years, and this process takes 10 days. Quite small, actually. Only a room with a lot of shelves, and some bottles. This is the 3rd barrier until the Cascadaverses.
A Nonacontanonagon has 99 sides, if you wanted to model this thing