This is Sta Isabel Cathedral of the Prelature of Isabela De Basilan. Many say that this place is most susceptible to bomb explosions brought about by some extremist in the region. More than that, the Cathedral features a mosaic altar all imported from Italy. The Cathedral is located fronting the Twin Parks and few meters away from the Provincial Capitol.
MY PERSONAL BIAS
The Cathedral of Sta Isabel in Basilan has a nice mosaic altar. A must see when one visits Basilan.