United States of America (USA) is a country, and is part of something bigger called a continent.
The continent that USA is a part of is called North America.
There are other countries in North America, like Canada which is above the USA, and Mexico which is below the USA.
All of North America (in green):
(From: Wikipedia - North America)
Canada:
(From: Wikipedia - Canada)
USA:
(From: Wikipedia - United States)
Mexico:
(From: Wikipedia - Mexico)
