The San Agustin Church is not the most beautiful church, but known for its strong architecture, made of stone. This is the third structure for the San Agustin Church, as the first two churches burned down in fires on different occasions.
The stone structure of this church has withstood many series of earthquakes, but still remains standing today. There are many cracks in the structure of the church from the earthquakes and the tower, which once accented the church, has been removed permanently due to the damages.
The interior of the church is in the form of a Latin cross, with 14 side chapels. It contains several different tombs of well known Spanish conquistadors such as Juan de Salcedo, Martin de Goiti, Miguel Lopez de Legazpi and even some early archbishops.