San Marino: Coin & Stamp Museum
It seems that the smaller the country is the more obsessed it is with stamp issuance and coin minting. The history of these is presented in a small but interesting museum with exhibits including old stamps and various coins from Sammarinese lira (the old currency) to the new commemorative euro coins. Under the agreement with EU, San Marino can mint its own euro coins, which it prolifically does and then sells to tourists in tourist coin sets.