Every city has its drawbacks -- parking, for example, or crime, or the price of a decent pizza slice -- but in the 1800s London faced a particularly unusual and disgusting problem: the city literally stank. And this wasn't an occasional whiff of urine or hot garbage from an alleyway, oh no. Instead, a pervasive stench permeated the area, an odor so strong that it disrupted Parliament, forcing the government to take action (and eventually rewriting our understanding of disease in the process). Learn more about your ad-choices at https://news.iheart.com/podcast-advertisers