For something really out of the ordinary in the ancient heart of Paris, go to Nos Ancetres les Gaulois on the Ile St Louis.
It's an all-you-can-eat-and-drink restaurant, with a dark ages theme - skins on the ancient stone walls, rough-hewn wooden tables, help-yourself-to-wine from the barrel kind of place, labrynthine and bacchanalian in atmosphere - musical floorshow with lots of audience participation.
All-in for 39 euros; unbeatable fun and totally unexpected in its rarefied surroundings; a perfect ending to a day of trawling around the museums.
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