Top 1 in Top 10 differences between Europe and Americas.
American currency is just as basic as it has: an invoice for anything for a dollar or higher (5,10,20,50, etc.), and money for anything a quarter (25 cents) or less: cents (10), nickel (5), pennies (1).
The Member States of the European Union have adopted a common currency known as the Euro (except the British were exempt from accepting the Euro). This can be extremely convenient when on vacation, but adopting the Euro has caused some difficulties in countries where prices increase sharply-such as Italy.