The Rape of the Sabines is a 17th century masterpiece.
It represents a key moment in the foundation of Rome.
The story goes that Romulus and his twin brother Remus were abandoned as infants in the wild, and only survived thanks to being suckled by a she-wolf.
Romulus later went on to kill his brother Remus and founded a city which he named after himself - Rome.
As the city grew in size and importance, the Romans realized that they didn't have enough women.
So they invited their neighbours, the Sabines, to a banquet - and kidnapped all the women.
The episode fascinated artists for centuries.
Some chose to represent the end of the story, when the Sabine men came to save the Sabine women but they refused to come back, preferring to remain Roman.
Others, like Poussin, preferred to represent the violence of the kidnapping itself.
Notice how most of the lines point towards the gates, guiding our eyes to the only escape route.
By contrast, Romulus' looms over the scene, his strength is emphasised by the strong, parallel lines of the Roman building behind him - a symbol of Roman power and supremacy.