We discovered this little museum almost by accident at the base of Sacre Coeur in Montmartre. It is not large but it is perfect. It contains over 300 works of art by Dali, and some of his personal effects, you can watch films relating to his work and even check out the famous red lips sofa!
They also bring in exhibits from other artists/designers/sculptors etceteras.
Dali was such a character that to immerse yourself in this space to think he might have been a little insane, and that the world was a better place because of his crazy.