Spanish architecture has left an imprint in the Philippines in the way many towns were designed around a central square or ''plaza mayor'', but many of the buildings bearing its influence were demolished during World War II. Four Philippine baroque churches are included in the list of UNESCO World Heritage Sites: the San Agustín Church in Manila, Paoay Church in Ilocos Norte, Nuestra Señora de la Asunción (Santa María) Church in Ilocos Sur, and Santo Tomás de Villanueva Church in Iloilo. Vigan in Ilocos Sur is also known for the many Hispanic-style houses and buildings preserved there.