I have 3 coins and need to know more about them,

Question

1. first coin have an angel on both sides

2. the next have an building from the middle east or somewhere and ther other side have a man with a turbin on his head with many other designs.

3.the coin has some letters-RZEC---------some of the letters are scratch off, but some others letters are-OLA and on the back a river runs through it plus some more letters such as-OSZE and a number 2

Answer 1

You're going to have to do some research here.  Go to your library, or book store, to the collecting section & check out the various books on the subject.  

A Catalog of Modern World Coins - would be a good start.