Art museum network
Here I put some links for my visitors which really worth your time.
Muse de Louvre
Chateau de Versaille
National Gallery London
National Gallery of Art
Art Institute of Chicago
Hermitage Museum
Museo del Prado
Galleria degli Uffizi
The Metropolitan Museum of Art
Boston museum of fine arts
Cleveland museum of art
Spanish Arts
Museums, Fondations and Collections in Italy