economic and political union
can move freely in Eu territory
with Schengen Treaty no border policeman and passport check
are free to live, work and retire in an other state of EU
27 contries
euro
who had joined the eurozone
San Marino, Vatican City, Monaco, Andorra print and use it but they aren't in the Eurozone
other currency
who hadn't joined the eurozone
reasons
countries that don't meet the convergence criteria (Croatia, Romania, Bulgaria, Poland, Hungary and Czech Republic)
countries that don't join (Sweden, Denmark)
islands, archipelagos and land territory
adopted the same law and all of the rights and duties associated with the EU membership
that do not form part of the European Union, though they cooperate with the EU