Since 1 January 2001, the Euro (€) has been the sole currency for 13 of the European Union's 27 Member States. Spain is one of those 13, so the Euro is the official currency used in Barcelona. One euro is equivalent to 100 cents, and was fixed at an equivalence of 1 euro to 166,386 pesetas. Euro notes are identical in all the participating countries, with seven denominations: 5 euros (grey); 10 euros (red); 20 euros (blue); 50 euros (orange); 100 euros (green); 200 euros (yellow), and 500 euros (lilac). The theme of the design on the notes is European architecture over the centuries, considered a common theme for the countries using the monetary system. The architectural design on the 5 euro note is from the Classical era, the 10 euro note from the Romanesque period, that on the 20 euro note is in Gothic style, the design on the 50 euro note from the Renaissance, that on the 100 euro note Baroque or Rococo, the 200 euro design is from the age of iron and glass, and that on the 500 euro note inspired by modern 20th Century architecture. There are coins of 1, 2, 5, 10, 20 and 50 cents, and 1 and 2-euro coins. A characteristic of all the coins in circulation is that they have one side with a common design for all the European countries and the other side with different designs from each country. © Barcelona City Council