National capital in the context of Seat of Government Act 1904

The term federal city is a title for certain cities in Germany, Switzerland, Russia, and several national capitals.

The District of Columbia retrocession was the act of returning to Virginia some of the land from the District of Columbia that Virginia had previously ceded to the federal government of the United States. The land was originally ceded to the federal government by Virginia and Maryland in 1790 for the purpose of creating a federal district for the new national capital; the capital was moved from Philadelphia to what was then called the City of Washington in 1800. After moving through various stages of federal and state approval, the Virginia portion was retroceded in March 1847.

Retrocession is the act of returning some or all of a portion of land that had previously been ceded.

Tegucigalpa (UK: /tɛˌɡuːsɪˈɡælpə/ US: /təˌ-/ Spanish: [teɣusiˈɣalpa])—formally Tegucigalpa, Municipality of the Central District (Spanish: Tegucigalpa, Municipio del Distrito Central or Tegucigalpa, M.D.C.), and colloquially referred to as Tegus or Teguz—is the capital and largest city of Honduras along with its sister city, Comayagüela.

Claimed on 29 September 1578 by the Spaniards, Tegucigalpa became the Honduran capital on 30 October 1880, under President Marco Aurelio Soto, when he moved the seat of government from Comayagua, which had been the Honduran capital since its independence in 1841. The 1936 constitution established Tegucigalpa and Comayagua as a Central District, and the current 1982 Honduran Constitution continues to define the sister cities as a Central District that serves as the permanent national capital.

New Providence is the most populous island in The Bahamas, containing more than 70% of the total population. On the eastern side of the island is the national capital city of Nassau; it had a population of 246,329 at the 2010 Census, and a population of 292,522 at the 2022 census. Nearly three quarters of The Bahamas's population lives in New Providence.

The island was originally under Spanish control following Christopher Columbus's discovery of the New World, but the Spanish government showed little interest in developing the island (and The Bahamas as a whole). Nassau, the island's largest city, was formerly known as Charles-town, but it was burned to the ground by the Spanish in 1684. It was laid out and renamed Nassau in 1695 by Nicholas Trott, the most successful Lord Proprietor, in honour of the Prince of Orange-Nassau who became William III of England.

Rancagua (Spanish pronunciation: [raŋˈkaɣwa]) is a city and commune in central Chile and part of the Rancagua conurbation. It is the capital of the Cachapoal Province and of the O'Higgins Region, located 87 km (54 mi) south of the national capital of Santiago.

It was originally named Santa Cruz de Triana by Spanish colonists. In 2012, its population was 232,211. The main economic activities range from mining, tourism, agriculture, timber, food production and services to minor industrial activities. The city also serves as the administrative and legal center of the region.