Unavoidable figures in abstract painting in the second half of the 20th century, the American painter Joan Mitchell and the Canadian painter Jean-Paul Riopelle are part of the constellation of sentimental and artistic mythologies, where the full scope of a close emotional bond between two passionate and audacious creators is revealed. For the very first time, an exhibition retraces their respective artistic careers.

Rome's expansion would never have been so rapid, nor would it have covered such a vast territory over such a long period of time, without the incredible strike force of its army. As an instrument of conquest, it also ensured the Empire a long period of peace. The exhibition presented in Arles shows its organisation, technicality and power and traces its evolution from the 2nd century BC to the end of the Empire.