99% Invisible 99% Invisible

(Not Just) Another Brick in the Wall

Oct 6, 2026 · 28m

Summary

Host Roman Mars speaks with Chicago brick historian Will Quam about the city’s architectural history, focusing on the Monadnock Building as the world’s tallest masonry skyscraper. They explore how the Great Fire of 1871 transformed Chicago from a wooden city into a brick metropolis using locally produced, "ugly" common bricks. The discussion traces the shift of brick from a primary structural material to a decorative element due to steel frames and modern concrete, while also examining the critical role of mortar in preserving historic buildings.

Topics discussed

Sponsors and show introduction Introduction to the Monadnock Building Will Quam and the history of Chicago bricks The Great Fire and the rise of Chicago common brick Mechanization of brick production The aesthetic of common brick and interior walls Geography of brick: face vs. common and regional styles The transition from structural brick to steel frames Decline of common brick manufacturing and environmental regulations Brick as a decorative and design material Brick buildings as community and identity markers The persistence of brick in language and culture Sponsor breaks The role of mortar in climate control and movement Problems with cement mortar in historic buildings Closing remarks and production credits Sponsor promotions
Listen ad-free on Castria