Paoay Church, also known as the St. Augustine Church, is a UNESCO World Heritage Site located in Paoay, Ilocos Norte, Philippines. Built during the Spanish Colonial period, the church is a stunning example of Baroque architecture with a unique blend of Gothic, Chinese, and native elements.

The construction of the church began in 1694 under the supervision of Augustinian friars and was completed in 1710. It is made of coral stone and bricks, and its most distinctive feature is its massive buttresses that serve as supports against earthquakes. The façade has intricate carvings and designs, including the large coral stone bell towers on each side.

The interior of the church is just as impressive, with a nave and transept that are adorned with beautiful artwork and intricate designs. The ceiling features paintings of the 12 apostles, while the walls have intricate carvings and religious figures.

Paoay Church has faced numerous earthquakes and typhoons throughout the years, but it has remained standing thanks to its solid structure and buttresses. Today, it remains an important part of Philippine history and culture, attracting thousands of tourists and pilgrims each year.