Hôtel de Lauzun is one of those mythical places you hear about in Paris – stunning, filled to the brim with history including former residents like Baudelaire, and almost impossible to get into and see. From the outside it looks like just about any other hôtel particulier on Île Saint-Louis, except for the wonderfully ornate dolphin-shaped gutters. But even then, there really isn’t an indication of how spectacular it is inside.