Metropolitan Water District of Southern California

Los Angeles Union Station (station code: LAX) is the main railway station in Los Angeles, California, and the largest railroad passenger terminal in the Western United States. It opened in May 1939 as the Los Angeles Union Passenger Terminal, replacing La Grande Station and Central Station. Approved in a controversial ballot measure in 1926 and built in the 1930s, it served to consolidate rail services from the Union Pacific, Santa Fe, and Southern Pacific Railroads into one terminal station. Conceived on a grand scale, Union Station became known as the "Last of the Great Railway Stations" built in the United States. The structure combines Art Deco, Mission Revival, and Streamline Moderne style. It was placed on the National Register of Historic Places in 1980. Today, the station is a major transportation hub for Southern California, serving almost 110,000 passengers a day. It is by far the busiest train station in the Western United States; it is Amtrak's fifth-busiest station, and is the twelfth-busiest train station in North America. Four of Amtrak's long-distance trains originate and terminate here: the Coast Starlight to Seattle, the Southwest Chief and Texas Eagle to Chicago, and the Sunset Limited to New Orleans. The state-supported Amtrak Pacific Surfliner regional trains run frequently to San Diego and also to Santa Barbara and San Luis Obispo. The station is the hub of the Metrolink commuter rail system and is a major transfer point for several Metro Rail subway and light rail lines. The Patsaouras Transit Plaza, on the east side of the station, serves dozens of bus lines operated by Metro and several other municipal carriers.

Yaanga was a large Tongva (or Kizh) village originally located near what is now downtown Los Angeles, just west of the Los Angeles River and beneath U.S. Route 101. People from the village were recorded as Yabit in missionary records although were known as Yaangavit, Yavitam, or Yavitem among the people. It is unclear what the exact population of Yaanga was prior to colonization, although it was recorded as the largest and most influential village in the region. Yaangavit were used as slave laborers during the Mission period by Franciscan padres to construct and work at San Gabriel Mission and Nuestra Señora Reina de los Ángeles Asistencia and forced laborers for the Spanish, Mexican, and American settlers to construct and expand Los Angeles. The colonizers' dependency on Yaanga for forced labor is thought to be a reason for its ability to survive longer than most Indigenous villages in the region. However, after the founding of Pueblo de Los Ángeles in 1781, Yaanga increasingly "began to look more like a refugee camp than a traditional community," and following relentless pressure on the inhabitants to assimilate, the community was eventually dispersed.The original village seems to have only remained intact until about 1813. After being forcibly relocated several times, eventually eastward across the Los Angeles River, it was razed to the ground by the Los Angeles City Council under American occupation in 1847. Buried intact deposits from Yaanga have been found throughout downtown Los Angeles, such as in the vicinity of Alameda Street, Bella Union Hotel, Union Station, Plaza Church, and the Metropolitan Water District Headquarters.

The Metropolitan Detention Center, Los Angeles (MDC Los Angeles) is a United States federal prison in downtown Los Angeles, California which holds male and female inmates prior to and during court proceedings, as well an inmates serving short sentences. It is operated by the Federal Bureau of Prisons, a division of the United States Department of Justice.

The Plaza Substation was an electrical substation that formed a part of the "Yellow Car" streetcar system operated by the Los Angeles Railway from the early 1900s until 1963. After being threatened with demolition in the 1970s, the Plaza Substation was added to the National Register of Historic Places in 1978.

The Los Angeles Chinese massacre of 1871 was a racial massacre targeting Chinese immigrants in Los Angeles, California, United States that occurred on October 24, 1871. Approximately 500 white and Hispanic Americans attacked, harassed, robbed, and murdered the ethnic Chinese residents of the old Chinatown neighborhood of the city of Los Angeles, California. The massacre took place on Calle de los Negros, also referred to as "Negro Alley". The mob gathered after hearing that a policeman and a rancher had been killed as a result of a conflict between rival tongs, the Nin Yung, and Hong Chow. As news of their death spread across the city, fueling rumors that the Chinese community "were killing whites wholesale", more men gathered around the boundaries of Negro Alley. A few 21st-century sources have described this as the largest mass lynching in American history.Nineteen Chinese immigrants were killed, fifteen of whom were later hanged by the mob in the course of the riot, but most of whom had already been shot to death before being hanged. At least one was mutilated, when a member of the mob cut off a finger to obtain the victim's diamond ring. Those killed represented over 10% of the small Chinese population of Los Angeles at the time, which numbered 172 prior to the massacre. Ten men of the mob were prosecuted and eight were convicted of manslaughter in these deaths. The convictions were overturned on appeal due to technicalities.

A statue of Junípero Serra (sometimes called Father Junipero Serra or Fra Junipero Serra) was installed in a portion of El Pueblo de Los Ángeles Historical Monument informally known as Father Serra Park in Los Angeles, California.

An equestrian statue of Antonio Aguilar is installed in Los Angeles' El Pueblo de Los Ángeles Historical Monument, in the U.S. state of California. The statue is located on the corner of Los Angeles Street and Alameda Street, in front of the city's Union Station.

The Lugo Adobe also called the Vicente Lugo Adobe or Casa de Don Vicente Lugo was a house in the City of Los Angeles, located on the east side of the Los Angeles Plaza at 512–524 N. Los Angeles Street.Don Vicente Lugo built the home in what is now called the El Pueblo de Los Ángeles Historical Monument in the 1840s. The Lugo Adobe was designated a California Historic Landmark (No.301) on July 12, 1939. Lugo Adobe was one of the very few two-story homes in the Pueblo of Los Angeles. In 1867 Don Vicente Lugo donated the Adobe to St. Vincent's School, that later became Loyola Marymount University. St. Vincent's School used the building for two years before moving the School. The building became part of what is now called Old Chinatown Los Angeles. When Old Chinatown became run down, Los Angeles put into place a redevelopment plan. The California Historic Landmark given to the Lugo Adobe did not save the Adobe from redevelopment. The Lugo Adobe was demolished in 1951, despite significant efforts to save it.The site of the former Lugo Adobe is now Father Junípero Serra Park on the east side of the Los Angeles Plaza and the east side of N. Los Angeles Street, just west of Union Station and just east of the southern end of Olvera Street.

The Italian American Museum of Los Angeles (Italian: "Museo Italo Americano di Los Angeles" and abbreviated IAMLA) is a museum located in downtown Los Angeles, California, and is part of the El Pueblo de Los Ángeles Historical Monument. It is dedicated to the history, experience and continuing contributions of Italian Americans and Italians in Southern California and the United States, and is the first such museum in Southern California. The museum opened in 2016 and has presented historical exhibits on Italians in Los Angeles, including Sunshine and Struggle and a variety of educational and cultural events.

Los Angeles Plaza or Plaza de Los Ángeles is located in Los Angeles, California. It is the central point of the Los Angeles Plaza Historic District. When Governor Felipe de Neve founded the Pueblo de Los Ángeles, his first act was to locate a plaza for the geographical center from which his town should radiate. De Neve's plaza was rectangular in form—75 varas wide by 100 in length. It was located north of the church; its southerly line very nearly coincided with the northerly line of West Marchessault street. On this, the cuartel (guard house), the public granary, the government house and the capilla (chapel), fronted.It is located just north of the original village site of Yaanga, which was used as a reference point in the construction of the plaza.

El Pueblo de Los Ángeles Historical Monument, also known as Los Angeles Plaza Historic District and formerly known as El Pueblo de Los Ángeles State Historic Park, is a historic district taking in the oldest section of Los Angeles, known for many years as El Pueblo de Nuestra Señora la Reina de los Ángeles del Río de Porciúncula. The district, centered on the old plaza, was the city's center under Spanish (1781–1821), Mexican (1821–1847), and United States (after 1847) rule through most of the 19th century. The 44-acre park area was designated a state historic monument in 1953 and listed on the National Register of Historic Places in 1972.

The Old Plaza Firehouse is the oldest fire station in the city of Los Angeles, built in 1884. It is located near Olvera Street in the Los Angeles Plaza Historic District. It was placed as a California Historical Landmark No. 730 on April 8, 1960. Designed by local architect William A. Boring [the City paid him $160.75 for his drawings], and built in 1884, it operated as a firehouse until 1897. The building was thereafter used as a saloon, cigar store, poolroom, "seedy hotel", Chinese market, "flop house", and drugstore. The building was restored in the 1950s and opened as a firefighting museum in 1960. The Plaza Firehouse Museum is open to the public Tuesdays through Sundays from 10 a.m. to 3 p.m. The museum features helmets, photos, and firefighting equipment of the late 19th and early 20th centuries.