Area:9.629.107 square kilometres.
Capital: Washington D.C(District of Columbia) which has 523.000 inhabitants.
Language: The official language is English, but thanks to the presence of European ethnic minorities in some of the biggest cities is also understood and spoken Spanish and sometimes Italian.
Domestic Currency: The official currency is the American Dollar (USD).
Time Zone: The east coast GMT-5 hours, The Central States GMT-6 hours, The Mountain areas GMT-7 hours, The Pacific Coast GMT-8 hours, finally Alaska and Hawaii respectively GMT –9 hours and –10 hours.
Religion: About a half of the population is Protestant; other professed religions are Catholicism and Hebraism.
Papers: A valid passport is required ;on the airplane is given to the passengers a form to be filled in and handed back just crossed the border, to explain the reason of the journey and some personal information. In fact if your stay gets over 3 months or doesn’t have a touristic intent, a special permission is required.