Israeli artist Vered Aharonovitch calls this disturbing masterpiece "The Cuckoo Clock". It's a complex, incredibly detailed automaton depicting a house of horrors filled with broken and insane people. Each member of the household has lost his grip in his own way.
Although there is no clock face, when the hour strikes, several characters parade outside of the house--just like the wooden cuckoo in the traditional clock. The man in the exercise wheel, though, never leaves his place, nor stops moving in his Sisyphean labors. When the Herzliya Museum exhibited this piece two years ago, the curators explained that it is the story of the relationship between a father and his daughter who are depicted at different stages in their relationship throghout the sculpture.
-via Nag on the Lake