The Museum of the Liberation of Paris sits in a tollhouse from the 1780s, and its real exhibit is twenty metres underneath it. In the last week of August 1944 the city rose against the German garrison. The police occupied their own headquarters and barricades went up in the streets. The fighting ran for six days, until an armoured division reached the centre and the German commander surrendered. The Resistance commander for Paris, Henri Rol-Tanguy, directed that fighting from an air-raid shelter under this square, dug in 1938 for the city's water engineers. It is still down there.
Upstairs the museum is built around two men who never met. Jean Moulin was sent into occupied France to bring the separate Resistance groups under one command; he was arrested in 1943, tortured, and died in German hands. Philippe Leclerc took a column of Free French soldiers across Africa and led the division that entered Paris. Their lives run in parallel down the same rooms, in letters, false papers, uniforms and film. A spiral stair of a hundred steps leads down to a corridor of small rooms, where the switchboard and the camp beds have been left exactly as they were.