Nuit des Musées
17 May, across Paris
© Karen Knorr
Good news for anyone balking at exorbitant entry fees for Paris's big collections: all night on 17 May, 1,300 French museums will open their doors for free for the 10th edition of Nuit des Musées. Prepare yourself a sandwich and some strong coffee, get ready to queue (particularly for the heavyweights), and delve into the depths of the Louvre, Palais de Tokyo, MAC/VAL, Musée de la Chasse et de la Nature and many more. You'll emerge shattered, but with your wallet not a centime lighter.
For more information, click here.