The design process of the excavation house has started by converting the feelings of overwhelm and darkness inside the tumulus to openness and spaciousness. These experiences were aimed to be supplied by the various openings, especially by the window with a water element located at the top of the domed roof of the center of the structure. Outside of the entrance is narrow enough for reminding a cave-like-structure. However, getting inside, at the first place, a spacious center welcomes the users with the tumulus view and a staircase which provides you to experience the sight from different points of the structure.