The gugalan house is a family owned house in the swiss mountains. The family now lives in the city, but they wanted Zumthor to recreate the house. The family wanted the house to look modern, but not lose its magic. Gugalan means looking at the moon. The house is built directly into the mountain. Zumthor has built buildings around existing environmental structures, like he did with the Therme Vals.
These types of buildings are so neat. creating a structure that isnt invasive to the surrounding landscape is difficult, but I believe the aesthetic that it offers is worth the effort.