The Ateneo Grand Splendid.
It sounds like the name of a cruise ship. Or some pedigreed Emir-owned Arabian superstallion racehorse.
It’s a bookstore. This bookstore:
Formerly a 1919-built theater and then cinema, it was turned into a bookstore. Good description from here:
The painted ceiling, detailed balconies, and stage are all intact. The private boxes are now small reading rooms. The stage is a café, where you can sit and peruse books you’re considering buying. And though it occupies three floors, there’s not an overwhelming selection — the shelves fit perfectly around the theater’s original shape, and comfortable chairs are scattered throughout.
Note to self: Visit Ateneo Grand Splendid before death.
More reading on reading vaults.
PS: More photos, including the ceiling and balconies: