Tlatelolco, Mexico City

The Conjunto Urbano Nonoalco Tlatelolco (officially Conjunto Urbano Presidente López Mateos) is the largest apartment complex in Mexico, and second largest in North America, after New York's Co-op City. The complex is located in the Cuauhtémoc borough of Mexico City. It was built in the 1960s by architect Mario Pani. Originally, the complex had 102 apartment buildings, with its own schools, hospitals, stores and more, to make it a city within a city. It was also created to be a kind of human habitat and includes artwork such as murals and green spaces such as the Santiago Tlatelolco Garden. Today, the complex is smaller than it was and in a state of deterioration, mostly due to the effects and after effects of the 1985 Mexico City earthquake. This quake caused the immediate collapse of the Nuevo León building with others being demolished in the months afterwards. Further earthquakes in 1993 caused the condemnation of more buildings. In addition to the lost buildings, many residents eventually undersold or abandoned their apartments, as repairs were either never made or made poorly. Today the complex consists of 90 apartment buildings, divided into three sections bordered by Avenida de los Insurgentes, Eje 1 Poniente Guerrero, Eje Central and Paseo de la Reforma. Originally, the complex was designed to house people from different economic social strata, but today almost all residents are of middle to middle-low income. Crime is a major problem, as is the structural integrity of some of the remaining buildings.

Tlatelolco is a metro station along Line 3 of the Mexico City Metro. It is located in the Tlatelolco neighbourhood of the Cuauhtémoc borough of Mexico City, to the north of the downtown area. It serves the Unidad Habitacional Nonoalco-Tlatelolco mega apartment complex, famous for its Plaza de las Tres Culturas square (with buildings from the pre-Hispanic, colonial, and modern eras) and infamous for the 1968 Tlatelolco massacre of demonstrating students. The station logo depicts the tallest building in the nearby Nonoalco-Tlatelolco residential estate, the triangular Torre Insignia, which was formerly a Banobras building. The 127 metres (417 ft) tower houses a 47-bell carillon – a gift to the Mexican people from the citizens of Belgium. Metro Tlatelolco is directly connected with the main square of the vast, 1960s residential estate. The station opened on 20 November 1970 with service southward towards Hospital General. Northward service towards Indios Verdes started nearly 8 years later on 25 August 1978.

Tlatelolco (Classical Nahuatl: Mēxihco-Tlatelōlco [tɬateˈloːɬko], modern Nahuatl pronunciation ) (also called Mexico Tlatelolco) was a pre-Columbian altepetl, or city-state, in the Valley of Mexico. Its inhabitants, known as the Tlatelolca, were part of the Mexica, a Nahuatl-speaking people who arrived in what is now central Mexico in the 13th century. The Mexica settled on an island in Lake Texcoco and founded the altepetl of Mexico-Tenochtitlan on the southern portion of the island. In 1337, a group of dissident Mexica broke away from the Tenochca leadership in Tenochtitlan and founded Mexico-Tlatelolco on the northern portion of the island. Tenochtitlan was closely tied with its sister city, which was largely dependent on the market of Tlatelolco, the most important site of commerce in the area.

Tlatelolco is an archaeological excavation site in Mexico City, Mexico where remains of the pre-Columbian city-state of the same name have been found. It is centered on the Plaza de las Tres Culturas. On one side of the square is this excavated Tlatelolco site, on a second is the oldest European school of higher learning in the Americas called the Colegio de Santa Cruz de Tlatelolco, and on the third stands a mid-20th-century modern office complex, formerly housing the Mexican Foreign Ministry, and since 2005 used as the Centro Cultural Universitario of UNAM (National University of Mexico).Tlatelolco was founded in 1338, thirteen years later than Tenochtitlan. At the main temple of Tlatelolco, archeologists recently discovered a pyramid within the visible temple; the pyramid is more than 700 years old. This indicates that the site is older than previously thought, according to the Instituto Nacional de Antropología e Historia (National Institute of Anthropology and History; INAH). Because this pyramid has design features similar to pyramids found in Tenayuca and Tenochtitlan, this site may prove to be the first mixed Aztec and Tlatelolca construction found in Mexico.

The Plaza de las Tres Culturas ("Square of the Three Cultures") is the main square within the Tlatelolco neighborhood of Mexico City. The name "Three Cultures" is in recognition of the three periods of Mexican history reflected by buildings in the plaza: pre-Columbian, Spanish colonial, and the independent nation. The plaza, designed by Mexican architect and urbanist Mario Pani, was completed in 1966. The square contains the archaeological site of the city-state of Tlatelolco and is flanked by the oldest European school of higher learning in the Americas called the College of Santa Cruz de Tlatelolco (built in 1536 by friar Juan de Torquemada) and by a massive housing complex built in 1964. The former headquarters of the Secretariat of Foreign Affairs (foreign ministry) also stands on the southern edge of the square. This headquarters now houses a memorial museum called "Memorial 68", opened by UNAM in October 2007, to remember the 1968 Mexican student demonstrations and the Tlatelolco Massacre victims and survivors. On the south side of the Plaza stands a large stone memorial erected on October 2, 1993, the 25th anniversary of the massacre, in memory of the hundreds killed.

On October 2, 1968 in the Tlatelolco section of Mexico City, the Mexican Armed Forces opened fire on a group of unarmed civilians in the Plaza de las Tres Culturas who were protesting the upcoming 1968 Summer Olympics. The Mexican government and media claimed that the Armed Forces had been provoked by protesters shooting at them, but government documents made public since 2000 suggest that snipers had been employed by the government. The number of deaths resulting from the event is disputed. According to U.S. national security archives, American analyst Kate Doyle documented the deaths of 44 people; however, estimates of the actual death toll range from 300 to 400, with eyewitnesses reporting hundreds dead. Additionally the head of the Federal Directorate of Security reported that 1,345 people were arrested.The massacre followed a series of large demonstrations called the Mexican Movement of 1968 and is considered part of the Mexican Dirty War, when the U.S.-backed Institutional Revolutionary Party (PRI) government violently repressed political and social opposition. The event occurred ten days before the opening ceremony of the Olympics, which were carried out normally.

The Colegio de Santa Cruz in Tlatelolco, Mexico City, is the first and oldest European school of higher learning in the Americas and the first major school of interpreters and translators in the New World. It was established by the Franciscans on January 6, 1536 with the intention, as is generally accepted, of preparing Native American boys for eventual ordination to the Catholic priesthood. Students trained in the Colegio were important contributors to the work of Franciscan Bernardino de Sahagún in the creation of his monumental twelve-volume General History of the Things of New Spain, often referred to as the Florentine Codex. The failure of the Colegio had long-lasting consequences, with scholar Robert Ricard saying that "[h]ad the College of Tlatelolco given the country even one [native] bishop, the history of the Mexican Church might have been profoundly changed."

Colonia San Simón Tolnáhuac is a colonia in the Cuauhtémoc borough of Mexico City, just north of the city's historic center. The colonia's borders are marked by the following streets: Eje 1 Poniente to the south, Avenida Rio Consulado to the north, Lerdo Street and Calzada Vallejo to the east and Avenida de los Insurgentes Norte to the west.This area originally was part of the Tlatelolco dominion and functioned as communal farmland through most of the pre-Hispanic and colonial periods. Its center was the village of San Simon Tolnáhuac. Tolnáhuac comes from Nahuatl and means “in reeds.” Around 1873, some of the farmland around here began to be subdivided and this subdivision called Cuitlahuac Ferrocarrilera. This subdivision was mostly populated by railroad workers who worked at the nearby Nonoalco station. This station was located at what is now the corner of Manuel González and Lerdo Street and belonged to the Monte Alto rail company. The main tracks were where San Simon Atlampa Street is now and at that time, divided the zone in half. By 1928, it was still the last independent village just north of the Mexico City's historic center, when it was finally incorporated. In 2008, the borough sponsored the twelfth “Rescue of the Urban Image of the Habitational Units in San Simón Tolnáhuac. The goal of the program is to maintain and repair aspects of large apartment units such as repairs of walls, courtyards, facades, railings and fences as well as maintenance work on lighting and sewer and other projects. That year, the focus was on several units on Jupiter Street. This program is a spinoff of the Rescue of the Urban Image of Green and Recreation Areas. In 2009, the borough announced the construction of a cultural center for the colonia.Schools in the colonia include the Centro de Integracion Infantil Carrusel preschool (private), Francisco Diaz Covarrubias primary school (public), Kinder las Rositas preschool (private), Mi Arco Iris preschool (private), Professor Luis de la Brina primary school (public) and the Tres Culturas primary school (private) .

Colonia Ex Hipódromo del Peralvillo is a colonia or neighborhood of the Cuauhtémoc borough of Mexico City, located north of the historic center. It is part of an area of the city that is noted for crime and lower income residents. One area of the colonia around Calzado de la Ronda is noted for stored selling used auto parts, frequently from stolen cars. The colonia is named after an old horse race track (hipodromo in Spanish) that was built here in the early 20th century, but the area was later parceled and sold to create housing for lower class workers.

Garibaldi / Lagunilla (formerly Garibaldi) is a station on the Mexico City Metro. It is a transfer station, serving both Lines 8 and B. It is the northern terminus of Line 8.

Colonia Guerrero is a colonia of Mexico City located just north-northwest of the historic center. Its borders are formed by Ricardo Flores Magón to the north, Eje Central Lazaro Cardenas and Paseo de la Reforma to the east, Eje1 Poniente Guerrero to the west and Avenida Hidalgo to the south. The colonia has a long history, beginning as an indigenous neighborhood in the colonial period called Cuepopan. The origins of the modern colonia begin in the first half of the 19th century, but most of its development occurred as a residential area in the late 19th and early 20th. Over the 20th century, several rail lines and major arteries were built through here, changing its character Cuauhtémoc borough. It is home to two early colonial era churches, the Franz Mayer Museum and one Neo-Gothic church from the Porfirian era.

Guerrero is a metro station on the Mexico City Metro. It is located in the Colonia Guerrero neighborhood of Cuauhtémoc borough of Mexico City, on the intersection of Zarco street and Eje 1 Norte Mosqueta Avenue. It is a transfer station for both Lines 3 and B.