Pasig is a city in the Philippines which was the former provincial capital of the province of Rizal prior to the formation of Metro Manila, the National Capital Region of the country of which it became a part. Located along the eastern border of Metro Manila, Pasig is primarily residential and industrial, but has been becoming increasingly commercial in recent years, particularly after the construction of the Ortigas Center business district in its west. The city is also the see of the Roman Catholic Diocese of Pasig, making its cathedral (formerly the Immaculate Conception Cathedral) a landmark built around the same time as the town's foundation in 1573.