Every blueprint begins as an ideal surface where every corridor is measured, every window aligned, and every life reduced to geometry. Long after the planners disappear, the drawings remain beneath layers of frosted glass, preserving a city that exists perfectly only in its own diagrams.
Concrete remembers differently. Walls collect routines instead of calculations, stairwells archive footsteps instead of measurements, and apartment blocks become living records whose histories exceed the intentions of their original plans. As buildings age, maintenance, investment, vacancy, and adaptation leave their own visible annotations across the city, turning architecture into an evolving civic archive.