I imagined that a mathematician might show up in a distant city someday, perhaps in the irradiated marshlands of Belarus, only to realize that all the buildings around her are actually 3D illustrations of unsolved geometrical conjectures – only people are living inside them, raising kids and doing laundry. Eating bagels and writing blogs, surrounded by zeta landscapes in glass and brick variations on the Riemann Hypothesis.

That's not a corridor at all but a glimpse of elliptic curve cryptography – it's non-commutative geometry in concrete.

The city is built algebra.