monuments to the Defenders of Moscow and the heroes of the Great Patriotic War are located in Zelenograd and the surrounding area, the most famous of which is the Shtyki Memorial, from which the remains of the Unknown Soldier were taken for reinterment at the Kremlin Wall in the Alexander Garden in Moscow. Before 1989, Zelenograd was a de facto closed city in some aspects: it was prohibited to take photos in the central parts of the city, near the plants, teaching and research facilities, and foreigners were not admitted into the city. In 1991, Zelenograd was reformed in one of the administrative okrugs of Moscow. Geography The Skhodnya River originates near the village of Alabushevo (one of settlements, which are under Zelenograd jurisdiction) and forms two ponds within the precincts of city - Small and Large City Pond. Administrative divisions Zelenogradsky Administrative Okrug is divided into five districts: Matushkino (), previously District #1: 1st, 2nd, and 4th microdistricts, North Industrial Zone Savyolki (), previously District #2: 3rd, 5th, 6th and 7th microdistricts, East Utility Zone, Nazar'evo village Staroye Kryukovo (), previously District #3: 8th and 9th microdistricts, South Industrial Zone, north part of Malino settlement Silino (), previously District #4: 10th, 11th, and 12th microdistricts, West and Alabushevo Industrial Zones Kryukovo (): 14th-23rd microdistricts (21st one is scheduled only), Andreevka Utility Zone, Malino Industrial Zone, south part of Malino settlement, Kamenka, Kutuzovo, Novo-Malino, and Rozhki villages The first four districts (about 2/3 area and population) are unofficially formed Old City, and Kryukovo District (separated by Saint Petersburg – Moscow Railway) is unofficially named New City. The most of postal address in city has no name of street or square - the most of buildings have only 3- or 4-digit number: the first one or two digits are number of microdistrict, the last two ones are number of building within microdistrict borders. There is no 13th microdistrict in Zelenograd. Economy Industries Zelenograd is home to the National Research University of Electronic Technology (MIET). Zelenograd was the headquarters of Sitronics Concerne since its founding in 1997 until 2005 (when its headquarters moved to Moscow) and Zelenograd is the headquarters of Mikron and Angstrem - both largest Russian integrated circuit manufacturers. Zelenograd is one of technical-innovative type Special economic zones. Since December 21, 2005 SEZ "Zelenograd" officially consists of 2 areas: Area "Alabushevo" (141.87 ha), a main area for new plants and