Patsaouras Transit Plaza

The Metro Headquarters Building (or One Gateway Plaza) is a 398 ft (121 m) high rise office tower in Los Angeles, California. It is located in Northeastern Downtown Los Angeles, east across the tracks from Union Station. Completed in 1995, it serves as the main headquarters for the Los Angeles County Metropolitan Transportation Authority.

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.

The Metropolitan Water District of Southern California is a regional wholesaler and the largest supplier of treated water in the United States. The name is usually shortened to "Met," "Metropolitan," or "MWD." It is a cooperative of fourteen cities, eleven municipal water districts, and one county water authority, that provides water to 19 million people in a 5,200-square-mile (13,000 km2) service area. It was created by an act of the California Legislature in 1928, primarily to build and operate the Colorado River Aqueduct. Metropolitan became the first (and largest) contractor to the State Water Project in 1960. Metropolitan owns and operates an extensive range of capital facilities including the Colorado River Aqueduct which runs from an intake at Lake Havasu on the California-Arizona border to its endpoint at the Lake Mathews reservoir in Riverside County. It also imports water supplies from northern California via the 444-mile (715 km) California Aqueduct as a contractor to the State Water Project. In 1960, Metropolitan became the first (and largest) contractor to the State Water Project. Metropolitan's extensive water system includes three major reservoirs, six smaller reservoirs, 830 miles (1,340 km) of large-scale pipes, about 400 connections to member agencies, 16 hydroelectric facilities and five water treatment plants. It serves parts of Los Angeles, Orange, San Diego, Riverside, San Bernardino and Ventura counties. The district covers the coastal and most heavily populated portions of Southern California; however large portions of San Diego, San Bernardino and Riverside counties are located outside of its service area. The Metropolitan headquarters is in downtown Los Angeles, adjacent to historic Union Station.

LAPD Hooper Heliport (FAA LID: 58CA) is a city-owned private-use heliport located one nautical mile (2 km) northeast of the central business district of Los Angeles, in Los Angeles County, California, United States.

Men's Central Jail is a Los Angeles County Sheriff's Department county jail for men in Los Angeles, Los Angeles County, California, United States. Built in 1963, it is one of the oldest county jails in California. The Men's Central Jail is located at 441 Bauchet St., Los Angeles 90012. The Men's Central Jail houses men who are awaiting trial or who have been convicted of crimes. The Men's Central Jail is considered one of the largest jails in the world. In May 2013, along with the adjacent Twin Towers Correctional Facility, Men's Central Jail was ranked as one of the ten worst prisons in the United States, based on reporting in Mother Jones magazine.On July 7, 2020, the Los Angeles County Board of Supervisors voted 4–0 to pursue a plan to close the Men's Central Jail within 12 months. In voting to eventually close the 57-year-old facility, county supervisors said they wanted to focus on community-based programs to treat mental health challenges of those entering and exiting the jail system administered by the Los Angeles County Sheriff's Department. The vote came amid deliberate inmate reductions during outbreaks of COVID-19 and the Black Lives Matter movement protests over police violence and the murder of George Floyd.

The Twin Towers Correctional Facility, also referred to in the media as Twin Towers Jail, is a complex in Los Angeles, California. The facility is located at 450 Bauchet Street, in Los Angeles, California and is operated by the Los Angeles County Sheriff's Department. The facility consists of two towers, a medical services building, and the Los Angeles County Medical Center Jail Ward. The 1.5 million square foot (140,000 m²) complex was opened in 1997, though it remained empty for a period prior to opening because of lack of operating funds. During that time, the deputy sheriffs had to prevent people from breaking in. It was authorized and constructed after the Northridge earthquake damaged the historic Hall of Justice in the city. Security at the facility centers on a panoptic design that allows deputies and officers in a central control room to look through secure optical material to see into all areas of the facility.

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.

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 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.

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.

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.

The Ávila Adobe, built in 1818 by Francisco Ávila, is the oldest standing residence in the city of Los Angeles, California. Avila Adobe is located in the paseo of historic Olvera Street, a part of the Los Angeles Plaza Historic District, a California State Historic Park. The building itself is registered as California Historical Landmark #145, while the entire historic district is both listed on the National Register of Historic Places and as a Los Angeles Historic-Cultural Monument. The Plaza is the third location of the original Spanish settlement El Pueblo de Nuestra Señora la Reina de Los Ángeles sobre el Río Porciúncula, the first two having been washed out by flooding from the swollen Río Porciúncula (Los Angeles River). The Avila Adobe was one of the settlement's first houses to share street frontage in the Pueblo de Los Angeles of Spanish colonial Alta California. The walls of the Avila Adobe are 2.5–3 feet (0.76–0.91 m) thick and are built from sun-baked adobe bricks. The original ceilings were 15 feet (4.6 m) high and supported by beams of cottonwood, which was available along the banks of the Los Angeles River. Though the roof appears slanted today, the original roof was flat. Tar (Spanish: brea) was brought up from the La Brea Tar Pits, located near the north boundary line of Avila's Rancho Las Cienegas. The tar was mixed with rocks and horsehair, a common binder in exterior building material, and applied to beams of the roof as a sealant from inclement weather. The original floor of the Avila adobe was hard-as-concrete compacted earth, which was swept several times a day to keep the surface smooth and free from loose soil. (Dirt floors were common among most early adobes.) In later years, varnished wood planks were used as flooring. The original structure was nearly twice as long as it now appears and was "L"-shaped, with a wing that extended nearly to the center of Olvera Street. The rear of the house had a long porch facing the patio. Francisco tended a garden and a vineyard in the rear courtyard. The nearby Zanja Madre (literally "Mother Ditch") was a main water aqueduct and irrigation ditch that brought water down to the Pueblo from the Los Angeles River and was close enough to the adobe for Francisco Avila to avail himself. Avila eventually added a wooden veranda and steps to the front of the adobe.