It's a small wall that makes a short hallway connecting to the kitchen. The opening is about 4'x3' about 40" off the ground that opens up the living room to the hallway and unfortunately you can see part of the bathroom door. Since it is a load bearing wall, the previous owner said he put the opening there to open up the living room I guess or for more light. I don't really feel like closing it up, just trying to get some ideas to decorate it. Stained glass or blocks are good ideas, looking for more before I make a decision. Thanks.