The document discusses three ambitious infrastructure projects: 1) The Panama Canal was initially attempted by the French but they failed due to disease, climate challenges, and lack of funds after completing only 1/3 of the work. The United States later took over the project and successfully implemented a lock-based canal design. 2) The Los Angeles Aqueduct diverted the Owens River over hundreds of miles through the desert to bring water to Los Angeles, enabling the city's growth. The project's success led to a land speculation scheme and rapid expansion of the city. 3) Reliable water supplies were critical to the development of cities. Bringing the Owens River to Los Angeles through the aqueduct