Diliman, located at the center of southern Quezon City, is where many government offices are located, including the City Hall. Diliman is also home to the main campus of the University of the Philippines. Far Eastern University's Institute of Technology (now FEU-FERN College) 15-hectare campus is located at the central portion of Diliman.
The University of the Philippines, Diliman (UPD) lies at the northwestern portion of Diliman occupying 4.92 km² of rolling land. (See the University of the Philippines, Diliman (Campus section)). Other schools are also located in the Diliman area, such as the main campus of the Philippine Science High School system.
Surrounding the Circle are many important health centers and institutions. Along East Avenue stands the Philippine Heart Center, the East Avenue Medical Center (EAMC), the National Kidney and Transplant Institute, and the Philippine Mental Health Association. Along North Avenue is the Veteran's Memorial Medical Center (VMMC) and the Philippine Health Association. The Philippine Children's Medical Center and Lung Center of the Philippines is located along Quezon Avenue (R-7).
At Diliman's center lies the Quezon Memorial where the late President Manuel L. Quezon is interred. The monument, encased in marble, is the highest structure in that part of the city. Running around the monument is the two-kilometer Quezon Memorial Circle, also known as the Elliptical Road (R-7/C-5). The circle links Commonwealth (R-7/C-5), Visayas, Kalayaan, East, North(C-5), and Quezon Avenues (R-7). The last three avenues provide access to Epifanio de los Santos Avenue (EDSA) (C-4), the main highway in Metro Manila.