There are interior walls made of stainless-steel vertical panels that slide to open or close off rooms or create smaller openings.

WSJ: Sailing the Wide Miami Sky

In places, even its primeval marrow juts out: where the river flattens we slide evenly past eerie, vertical folds of Vishnu schist, which our guides tell us whistle when the wind blows through its billion-year-old fins.

BBC: Missing pieces in Utah