There is only one Embassy in a foreign country. For instance, Mexico or the UK has only one Embassy each in America. But, they may have several Consulates that are like branches of the Embassy. The Embassy is usually in the Capitol city (maybe always?) so, in America the Embassies are in Washington DC, but there are consulates in other places around the country. Since the US is so large it is not unusual that we have a large number of consulates here from foreign countries. In smaller countries they might only have Embassies and no Consulates. The Embassies are usually much larger than a consulate office, much larger staff, and the Ambassador to the country usually works from the Embassy.