Dujiangyan Zhongshuge, bookstore in Chengdu with mirrored floors and ceilings creating the feeling of an infinite Escher palace of books: http://www.xl-muse.com/html/en/index.php?ac=article&at=read&did=239, via https://www.thisiscolossal.com/2021/05/x-living-dujiangyan-zhongshuge/
@11011110 I can't really get a sense of whether it would be pleasant to be in the place, or unsettling. The photos look very cold, and I wonder how you access all of the books. It seems marvelous, though, and I'd be curious to visit it at least once. Unlikely, though!