Chapter 8 of Earthopolis: A Biography of Our Urban Planet explores cities’ role as creators and creations of early-modern global mercantile capitalism. It shows how imperial states and merchants employed various “spatial fixes” based in cities and their growing plantation hinterlands to overcome obstacles to the growing project of seizing the world’s wealth through land conquests, the enslavement of American and African laborers, and the militarization of trade in the Indian Ocean. Global finance, built upon rich silver mining cities in Spanish America, Chinese imperial tax policies, urban ports, banks, stock markets, joint stock companies, insurance, and the increasing value of urban real estate allowed states and merchants to pool the capital needed for trade across World Oceanic distances. A truly planetary Urban Planet came into being as these new city-enabled circuits of commerce enveloped the Pacific Ocean for the first time after the inauguration of the Acapulco–Manila galleon trade in 1571.