Serbia is not officially a member of the European Union. But it became a canidate country on March 1 , 2012. And obviously its not a founder of the European Union.
Around Serbia is Turkey and Romania. Also Serbia is landlock country located in the balkons.
If you visit Serbia make sure to visit these wonderful places: Novi sad , Mokra gora , Noka varos. You should also visit there because guest are treated well and with respect.
Fun fact: they use dinars as curency!