Examples of modern skyscrapers built in the 21st century include Bucharest Tower Centre, Euro Tower, Nusco Tower, Cathedral Plaza, City Gate Towers, Rin Grand Hotel, Premium Plaza, Bucharest Corporate Centre, Millennium Business Centre, PGV Tower, Charles de Gaulle Plaza, Business Development Centre Bucharest, BRD Tower, and Bucharest Financial Plaza. Despite this vertical development, Romanian architects avoid designing very tall buildings due to vulnerability to earthquakes. Aside from buildings used for business and institutions, residential developments have also been built, many of which consist of high-rise office buildings and suburban residential communities. An example of a new high rise residential complex is Asmita Gardens. These developments are increasingly prominent in northern Bucharest, which is less densely populated and is home to middle- and upper-class Bucharesters due to the process of gentrification. Education Overall, 159 faculties are in 34 universities. Sixteen public universities are in Bucharest, the largest of which are the University of Bucharest, the Politehnica University of Bucharest, the Bucharest University of Economic Studies, the Carol Davila University of Medicine and Pharmacy, Technical University of Civil Engineering, the National University of Political Studies and Public Administration and the University of Agronomic Sciences and Veterinary Medicine of Bucharest. These are supplemented by nineteen private universities, such as the Romanian-American University. Private universities, however, have a mixed reputation due to irregularities. In the 2020 QS World University Rankings, from Bucharest, only the University of Bucharest was included in the top universities of the world. The Politehnica University disappeared from the ranking. Also, in recent years, the city has had increasing numbers of foreign students enrolling in its universities. The first modern educational institution was the Princely Academy from Bucharest, founded in 1694 and divided in 1864 to form the present-day University of Bucharest and the Saint Sava National College, both of which are among the most prestigious of their kind in Romania. Over 450 public primary and secondary schools are in the city, all of which are administered by the Bucharest Municipal Schooling Inspectorate. Each sector also has its own Schooling Inspectorate, subordinated to the municipal one. Media The city is well-served by a modern landline and mobile network. Offices of Poșta Română, the national postal operator, are spread throughout the city, with the central post office () located at 12 Matei Millo Street. Public telephones are located in many places and are operated by Telekom Romania, a subsidiary of Deutsche Telekom