The project is a public market for the 21st century. It takes advantage of Philadelphia as a vehicle to explore architecture's relationship to the urban condition. To design in the city requires a reading of the layered and complex material morphology of Philadelphia made up of houses, businesses industries, streets, rivers, parks, natural features, and many other kinds of infrastructures. Additionally, a deep reading reveals less visible relationships and patterns that govern and shape its daily activities including politics, demographics, economies, climates, and all the complex histories.