A capital city or just capital is the municipality holding primary status in a country, state, province, department, or other subnational division, usually as its seat of the government. A capital is typically a city that physically encompasses the government's offices and meeting places; the status as capital is often designated by its law or constitution. In some jurisdictions, including several countries, different branches of government are in different settlements, sometimes meaning multiple official capitals. In some cases, a distinction is made between the official (constitutional) capital and the seat of government, which is in another place.
Tokyo, the capital of Japan, and the most populous metropolitan area in the world
Rome, as the capital of the Roman Empire, acquired the nickname of Caput Mundi ("Capital of the world").
Beijing, as the last of the Four Great Ancient Capitals of China, has served as the country's political centre for most of the past eight centuries.
Tehran, the capital and largest city of Iran, and the capital of the Persian Empires in the last two centuries.
Metonymy is a figure of speech in which a concept is referred to by the name of something closely associated with that thing or concept.
The Pentagon is the headquarters building of the United States Department of Defense, and is a common metonym used to refer to the U.S. military and its leadership.
Fleet Street (where most British national newspapers previously operated) is used as a metonym for the British press.
