Blank...! Not sure what this can be. Maybe like...the guts of this site? But you have furniture inside too... Hm. Inside a syllabus. Inside an apartment building. Well going inside just leads to more hallways, more doors. Okay so more doors. Which rooms will those doors lead to? There's 1, 2, 3, 4, 5 etc...numbered apartments. So these can be numbered "units"? Like in a syllabus too! But I mean yeah from the front of the building you can already see the featured units. But yeah the other ones...Not sure. They can be under construction? Or like old and no tenants LOL. Hm lately when I tell people about this I'm either telling people this is just for myself, or they are saying some version of well as long as it makes you happy.