The most important building in Greece, as it houses the Parliament of Greece. It was built between 1836 and 1842 as the King’s Palace, based on the plans of the German architect Gaertner. In 1931 it was turned into the Parlament House of Greece.  Right in front of the Parliament lies the Unknown Soldier Tomb which is guarded around the clock by two Greek soldiers .They wear the traditional Greek army uniform and they belong to the Presidential Guard. They are also known as Euzones which means well-girt.  The changing of the guards takes place every hour upon the hour and it is really worth seeing.