Stunning white churches with blue domes have become one of the country’s iconic picture postcard images. Sky blue and brilliant white, the colours of the Greek flag, are widely used across Greece and her islands, but not exclusively. Many churches and buildings are decorated in other colours too, although white is often used to help deflect the power of the sun. Use of the patriotic colours was twice banned by tyrannical rulers, but the ban made the defiant Greek people more determined to use them.