Pasig is a city on eastern Metro Manila, lending its name from the eponymous river of the same name. Once part of Rizal province (but remains the province's de jure capital), Pasig now part of Manila's ever-expanding sprawl. Its downtown area still maintain its characteristically Filipino charm, though overshadowed by the modernity of its central business district, Ortigas Center and swamped by uncontrolled development, slums, and pollution that Manila continues to experience.