Clouds floating above the Panthéon on the Left Bank.

Clouds floating behind the northern façades of the Panthéon and l’église Saint-Étienne-du-Mont on the Left Bank, seen from Notre-Dame Cathedral on île de la Cité. Léon Foucault carried out a demonstration of the rotation of the planet in 1851 by suspending a pendulum from the ceiling.

Photographs of the Left Bank.