In the summer of 1858, the River Thames in London fermented. The smell was so overpowering it shut down Parliament. This "Great Stink" was the climax of a public health crisis, but it also became the catalyst for one of the most ambitious engineering projects in history: a comprehensive sewer system. We wade into the miasma of Victorian London, where cholera was thought to be spread by smell and waste flowed openly in streets. We follow the visionary engineer Joseph Bazalgette as he battles political inertia and scientific ignorance to build over 1,000 miles of underground brick tunnels, reshaping the city's geography and saving countless lives. You'll appreciate the invisible architecture that makes urban life possible. This episode connects civic engineering directly to social progress, showing how confronting a visceral, immediate crisis can le ...