Balvanera, Argentina

With a population of 138,926, Balvanera is a densely populated Buenos Aires neighborhood that offers little in the way of green space. The streets are a constant traffic snarl, with buses and taxis clogging the main avenues. Bureaucracy is a persistent headache, as evidenced by the graffiti-covered mausoleum of a former president. On the plus side, the area boasts a rich cultural heritage, from its historic Jewish quarter to the tango-infused cafes that dot the neighborhood. Overall, Balvanera is a bustling, high-density urban center best suited for those who thrive in a fast-paced, commerce-driven environment.