Gustav Klimt. The Beethoven Frieze. 1902. 

The Hostile Forces. The end wall of Klimt’s masterful mural, representing the forces of darkness the knight must move through, to both vanquish and resist temptations. At the left are the gorgons of mythic greek origin, the three lethal and seductive sisters with Medusa at the center. Above them are the figures of sickness, madness and death - all these in the shadow of the great figure of pure evil we in the mythical creature of Typhoeus. With an ape-like head and chest, the entire mass of decorative painting to the right is also Typhoeus. An enormous, bluish eagle wing, and below that an intricately articulated serpent-like body with great winding lengths. Within that wing and serpent we see another female figure representing an ever present grief. She is painted in only grey and black, in sharp contrast to much of the other figures which are rendered in brilliant golds or blues, such as the three found to the direct right of Typhoeus. They represent lasciviousness, wantonness and intemperance.
Greece's anti-austerity murals: street art expresses a nation's frustration
By Jon Henley

From the ornate baroque arch that adorns the front of a €100 banknote, the tiny figure of a man, drawn in black ink, hangs by his neck. Passers-by, one a child, look up at the swinging corpse, aghast.

On a €5 bill, the grim reaper stands beneath a more classical temple, hooded and menacing, scythe in hand. And with boots and hammers, a small crowd are merrily smashing the leaded gothic windows on a €20 note.

Each drawing, in black ballpoint, is inspired by a headline: a suicide (of which there are now an estimated 35% more in Greece thanin 2010), a riot, demonstration, act of violence or despair, a story of poverty or deprivation.