The Ayala Triangle is a sub-district of the Makati CBD, comprising the parcel of land between Ayala Avenue, Makati Avenue and Paseo de Roxas, as well as the buildings on those streets. Many multinational companies, banks, and other major businesses are located within the triangle. A few upscale boutiques, restaurants, and a park called Ayala Triangle Gardens are also located in the area. Ayala Avenue and Paseo de Roxas also have the distinction of being the runways of the former Nielson Field, Metro Manila's main airport in the 1930s.