The term North American Capital can be solved by two crossword solutions: Ottawa (6 letters) and PESO (4 letters). Ottawa is the capital of Canada, located in the province of Ontario. It is the fourth largest city in Canada and the second largest city in the province. The city is home to many national institutions, including the Parliament of Canada, the Supreme Court of Canada, and the National Gallery of Canada. PESO is the official currency of Mexico, and is also used in some parts of Central America. It is divided into 100 centavos and is denoted by the symbol '$'.