Main and Military Plazas Historic District

Presidio de Béxar was a Spanish fort built near the San Antonio River, located in what is now San Antonio, Texas, in the United States. It was designed for protection of the mission San Antonio de Valero and the Villa de Bejar. The Presidio de Bejar was founded on May 5, 1718 by Spanish colonial official Martin de Alarcon, and his party of thirty-five soldiers. The Villa de Bejar is known for being the first Spanish settlement of San Antonio and consisted of the families of the Presidio Soldiers and those of the prior expeditions. It also served to secure Spain's claim to the region against possible encroachment from other European powers.

Camp John Wise is a former United States Army military garrison, located in San Antonio, Texas. During World War I it was used as a training field for the U. S. Army Balloon Corps between 1917 until 1919. The airfield was one of thirty-two Air Service training camps established in 1918 after the United States entry into World War I. It named for John Wise of Philadelphia, a pioneer balloonist who constructed a balloon in which he set a world distance record in 1869.

San Fernando Cathedral (Spanish: Catedral de San Fernando) also called the Cathedral of Our Lady of Candelaria and Guadalupe (Spanish: Catedral de Nuestra Señora de la Candelaria y Guadalupe) is a cathedral of the Roman Catholic Church located in downtown San Antonio, Texas, United States, facing the city's Main Plaza. It is the mother church of the Archdiocese of San Antonio and the seat of its archbishop. Its dome serves as the city of San Antonio's cultural and geographical center. The cathedral is also known as the Church of Nuestra Señora de la Candelaria y Guadalupe and is listed on the National Register of Historic Places. It is notable as one of the oldest cathedrals in the United States.

The Bexar County Courthouse is a historic building in downtown San Antonio, Texas, USA. The building was designed by architect J. Riely Gordon, and borders Main Plaza, along with such other architectural landmarks as the Cathedral of San Fernando. The style is Romanesque Revival, and the main material used is red sandstone. Ground was broken for Gordon's structure on August 4, 1891, and the cornerstone was laid December 17, 1892. After several delays, construction was fully completed in 1896. The building was added to the National Register of Historic Places in 1977. The Courthouse currently functions as the county seat of Bexar County.

The Roman Catholic Archdiocese of San Antonio is an archdiocese of the Catholic Church in the United States, and sui juris Latin Church in full communion with the pope of Rome. It encompasses 27,841 square miles (72,110 km2) in the U.S. state of Texas. The Roman Catholic Archdiocese of San Antonio had a self-reported 2018 population of 796,954, up from 728,001 in 2014. The archdiocese includes the city of San Antonio and the following counties: Val Verde, Edwards, Kerr, Gillespie, Kendall, Comal, Guadalupe, Gonzales, Uvalde, Kinney, Medina, Bexar, Wilson, Karnes, Frio, Atascosa, Bandera County, and the portion of McMullen north of the Nueces River.On August 28, 1874, the Roman Catholic Diocese of Galveston was divided and the northern territory was canonically erected by the Holy See as the Roman Catholic Diocese of San Antonio. Originally part of the Ecclesiastical Province of New Orleans, it was subsequently elevated on August 3, 1926, to a metropolitan archdiocese.The archbishop of San Antonio also serves as the metropolitan of the ecclesiastical province of San Antonio with the Roman Catholic Archdiocese of San Antonio overseeing the following suffragan dioceses: Amarillo, Dallas, El Paso, Fort Worth, Laredo, Lubbock, and San Angelo. All of Texas' dioceses had been suffragan sees under San Antonio until December 2004 when Pope John Paul II created the new Ecclesiastical Province of Galveston-Houston and elevated the Archdiocese of Galveston-Houston to a metropolitan see.

Area codes 210 and 726 are area codes for telephone numbers in the North American Numbering Plan (NANP) in and near San Antonio, Texas. Area code 210 was created in an area code split from number plan area 512 in 1992. After only a few years, the threat of number exhaustion forced a reduction of the size of the numbering plan area to the center of the San Antonio metropolitan area in a three-way split in 1997. Area code 726 was assigned to the same numbering plan area in an overlay plan activated in 2017 to alleviate the threat of exhaustion that was expected by 2018. Area codes 210 and 726 are enclave codes for an area completely surrounded by numbering plan area 830.

Greater San Antonio, officially designated San Antonio–New Braunfels, is an eight-county metropolitan area in the U.S. state of Texas defined by the Office of Management and Budget (OMB). The metropolitan area straddles South Texas and Central Texas and is on the southwestern corner of the Texas Triangle. The official 2020 U.S. Census showed the metropolitan area's population at 2,558,143—up from a reported 1,711,103 in 2000—making it the 24th largest metropolitan area in the United States. Austin–Round Rock lies about 80 miles northeast of Greater San Antonio. San Antonio–New Braunfels is the third-largest metro area in Texas, after Dallas–Fort Worth–Arlington and Houston–The Woodlands–Sugar Land.

San Antonio ( SAN an-TOH-nee-oh; Spanish for "Saint Anthony"), officially the City of San Antonio, is the seventh-most populous city in the United States, second largest city in the Southern United States, and the second-most populous city in Texas as well as the 12th most populous city in North America with 1,434,625 residents in 2020. Founded as a Spanish mission and colonial outpost in 1718, the city became the first chartered civil settlement in present-day Texas in 1731. The area was still part of the Spanish Empire, and later of the Mexican Republic. It is the state's oldest municipality, having celebrated its 300th anniversary on May 1, 2018.The city was the fastest-growing of the top ten largest cities in the United States from 2000 to 2010, and the second from 1990 to 2000. The city of San Antonio serves as the seat of Bexar County; San Antonio is the center of the San Antonio–New Braunfels metropolitan statistical area. Commonly called the Greater San Antonio, the metropolitan area had a population of 2,550,960 based on the 2019 U.S. census estimates, making it the 24th-largest metropolitan area in the United States and third-largest in Texas. Straddling the regional divide between South and Central Texas, San Antonio anchors the southwestern corner of an urban megaregion colloquially known as the Texas Triangle. Downtown San Antonio and Downtown Austin are approximately 80 miles (129 km) apart, both falling along the Interstate 35 corridor. Some observers expect the two metropolitan regions to form a new metroplex similar to Dallas and Fort Worth.San Antonio was named by a 1691 Spanish expedition for the Portuguese priest Saint Anthony of Padua, whose feast day is June 13. The city contains five 18th-century Spanish frontier missions, including The Alamo and San Antonio Missions National Historical Park, which together were designated UNESCO World Heritage sites in 2015. Other notable attractions include the River Walk, the Tower of the Americas, SeaWorld, the Alamo Bowl, and Marriage Island. Commercial entertainment includes Six Flags Fiesta Texas and Morgan's Wonderland amusement parks. According to the San Antonio Convention and Visitors Bureau, the city is visited by about 32 million tourists a year. It is home to the five-time NBA champion San Antonio Spurs, and hosts the annual San Antonio Stock Show & Rodeo, one of the largest such events in the U.S. The U.S. Armed Forces have numerous facilities in and around San Antonio; Fort Sam Houston is the only one within the city limits. Lackland Air Force Base, Randolph Air Force Base, Kelly Air Force Base, Camp Bullis, and Camp Stanley are outside the city limits. San Antonio is home to four Fortune 500 companies and the South Texas Medical Center, the only medical research and care provider in the South Texas region. San Antonio is also the largest majority-Hispanic city in the United States, with 64% of its population being Hispanic.

The Military Plaza (Plaza de Armas) in San Antonio, Texas dates back to the 18th century as a military and commercial center in San Antonio. It is the location of San Antonio City Hall and the Spanish Governor's Palace.

City Tower is a skyscraper in downtown San Antonio, in the U.S. state of Texas. The 22-story building previously served as the headquarters for Frost Bank from 1975 to 2019 until Frost Bank moved into the eponymously named Frost Tower. In 2015 the city of San Antonio acquired the building for $52.9 million and has allotted $88 million for renovations to the building. Upon completion of the renovations the building will consolidate 24 city departments and 1,400 city employees and will serve as the main office building for the city of San Antonio. At a height of 300 feet (99 meters), it is the 11th tallest building in San Antonio.

The San Antonio River Walk is a city park and special-case pedestrian street in San Antonio, Texas, one level down from the automobile street. The River Walk winds and loops under bridges as two parallel sidewalks lined with restaurants and shops, connecting the major tourist draws from the Shops at Rivercenter, to the Arneson River Theatre, to Marriage Island, to La Villita, to HemisFair Park, to the Tower Life Building, to the San Antonio Museum of Art, to the Pearl and the city's five Spanish colonial missions, which have been named a World Heritage Site, which includes the Alamo. During the annual springtime Fiesta San Antonio, the River Parade features flowery floats that float down the river.

The Spanish Governor's Palace is a historic adobe from the Spanish Texas period located in Downtown San Antonio. It is the last visible trace of the 18th-century colonial Presidio San Antonio de Béxar complex, and the only remaining example in Texas of an aristocratic 18th-century Spanish Colonial in−town residence. The National Geographic Society has named the landmark "the most beautiful building in San Antonio." The building was designated a National Historic Landmark in 1970. It is now owned by the city, and is open to the public as a museum.