What does Spain's money look like?
Spain uses the euro as its currency so it shares the same bills as all other Eurozone states. Its coins also share the common obverse, while the reverse sides show the following images:
1, 2, and 5 cents: Cathedral of Santiago de Compostela
10, 20, and 50 cents: Miguel de Cervantes
€1 and €2: King Juan Carlos
There are images at the Related Link