31/05/2026
https://www.facebook.com/share/p/18d5ZzHL1j/?mibextid=wwXIfr
Look at this glass dome on the South Side. It's at the University of Chicago, right next to the old Regenstein Library.
From the outside, it looks like an art piece. A glowing glass egg sitting on the lawn.
But what you're looking at is just the roof.
Underneath your feet, five stories down, sits one of the strangest libraries on Earth. And there's not a person in it.
Here's what happened.
By the late 2000s, every major university had the same problem. Books, books, and more books. Millions of them. No room left. Most schools were giving up — shipping their collections off to warehouses in the middle of nowhere, where it took days to get a book back when a student needed it.
The University of Chicago refused. They wanted every single book on campus, where students could still hold them. But they had no space.
So they went down.
They dug a giant hole — fifty feet deep — right in the middle of campus. They lined it with steel racks five stories tall. And they filled it with 3.5 million books, stored not by subject or author but by size, packed in tight metal bins so they'd fit in one-seventh the space of normal shelves.
Then they put robots in charge.
Five enormous robotic cranes, each fifty feet tall, run up and down the underground stacks in the dark. When a student upstairs types in a request, a crane wakes up, glides to the right bin, pulls it out, and delivers the book to a librarian on the surface. The whole thing takes about five minutes. No human ever sets foot down there. There are no lights on. The books live in cool, dry darkness.
And above all of it — sitting on top of the hole like a lid — is the glass dome. Inside, 180 students sit at desks in pure daylight, studying. They have no idea that 50 feet below them, robots are sliding silently through the dark, pulling books no one has touched in years.
It opened in 2011. They named it the Joe and Rika Mansueto Library, after the alumni who donated $25 million to build it. Today it's the only library in the country with a completely underground robotic storage system.
It's already almost full.
Three and a half million books. Five robots in the dark. One glass egg on the grass. Right here in Chicago.
