Washington, D.C. is the capital of the United States.
Ottawa is the capital of Canada.
Mexico City is the capital of Mexico and one of the largest metropolitan areas in the Americas.
Brasília is the capital of Brazil (distinct from Rio de Janeiro and São Paulo).
London is the capital of the United Kingdom.
Paris is the capital of France.
Berlin is the capital of Germany.
Rome is the capital of Italy.
Cairo is the capital of Egypt.
Tokyo is the capital of Japan.
Beijing is the capital of China and one of the world's most populous cities.
New Delhi is the capital of India, located within the larger metropolitan area of Delhi.
Canberra is the capital of Australia, a planned city located between Sydney and Melbourne.
Buenos Aires is the capital of Argentina and one of South America's largest cities.
Moscow is the capital of Russia and the country's largest city.
Bangkok is the capital of Thailand and a major economic and cultural center in Southeast Asia.
Seoul is the capital of South Korea and one of the world's largest metropolitan areas.
Lagos was the capital of Nigeria until 1991, when it was moved to Abuja.
Nairobi is the capital of Kenya and serves as a major economic hub in East Africa.
Some countries have multiple capitals serving different functions (administrative, legislative, judicial).