Caloocan, Philippines

With a population of over 1.7 million, Caloocan is a sprawling, densely packed city in Metro Manila. The tax burden is heavy, as the city's coffers must support a vast network of 193 barangays. Bureaucracy is a persistent headache, exemplified by the long-running disputes over the city's borders. And while the tropical climate brings abundant rainfall, the poor drainage leaves many areas prone to flooding. Still, Caloocan's strategic location and thriving commercial districts make it an appealing option for those seeking an urban center with ample job opportunities and amenities - provided they can tolerate the challenges of big-city living.