The City of Circuits
The City of Circuits is microscopic. You must shrink yourself to enter its gates. The streets are traces of copper, and the town squares are ATtiny processors.
The inhabitants speak in pulses of high and low voltage. They construct their homes from USB-C dongles and soldering iron smoke. It is a place of pure utility, where every connection must be made by hand.
"Efficiency," the mayor says, "is a matter of pin count."