People hallucinate after drinking a mushroom-based liquor in a fictional, all-male one of these places in a novel narrated by the fungi in its floorboards. In another novel, a former plantation owner takes his colleagues from one of these places to a waterfall picnic, where the water muffles the announcement of his own suicide. A woman in one of these places constantly slams a glass door en route to the “Good Russian table” she shares with Marusya, the crush of the protagonist’s (*) cousin. Following a Walpurgis Night in one of these institutions, (10[1])a converted Jesuit arrives there to debate the Italian humanist Settembrini. In that novel, an engineer from Hamburg spends seven years in one of these institutions located (10[1])in Davos. For ten points, name this type of institution that Hans Castorp checks into in The Magic (10[1])Mountain. ■END■