San Agustin Church, officially known as the Church of the Immaculate Conception of San Agustin, stands as the oldest stone church in the Philippines. Located within the historic walls of Intramuros in Manila, this architectural marvel dates back to 1571, although the present structure was completed in 1607. The church is a magnificent example of 'Earthquake Baroque', a structural style designed to withstand the country’s frequent seismic activity. Boasting a rich history, San Agustin Church has withstood wars, earthquakes, and the passage of time. Inside, visitors can admire the stunning trompe-l’oeil frescoes on the ceiling, a beautifully-carved wooden pulpit, and an impressive array of religious artifacts and centuries-old art. It also has a museum that houses various ecclesiastical treasures, colonial art, and liturgical artifacts. This remarkable edifice is recognized as a National Historical Landmark and was designated as a UNESCO World Heritage Site in 1993 as part of the Baroque Churches of the Philippines. Its storied past and breathtaking interiors make it a must-visit for history enthusiasts and tourists alike.