Impressionism: Art and Modernity, an essay from the Metropolitan Museum of Art

Impressionism, Wikipedia entry

Claude Monet, Impression, soleil levant
Impression Sunrise, 1872, oil on canvas, 18.9x24.8in, Musée Marmottan Monet
Monet Grand Canal Legion of Honor
Grand Canal Venice, 1908, oil on canvas, 29x36.4in, Fine Arts Museums of San Francisco (Legion of Honor)
Nymphéas reflets de saule 1916-19
Water Lilies and Reflections of a Willow, 1916–19, oil on canvas, 61x51in, Musée Marmottan Monet
Monet - Das Haus in den Rosen
The House among the Roses, 1917-1919, oil on canvas, 39.4x78.7in, Albertina, Vienna
Rouen Cathedral (1892-1894) click images to see full resolution
Claude Monet, Rouen, 1892-94 Claude Monet, Rouen, 1892 Claude Monet, Rouen-sunset, 1892 Claude Monet, Rouen, 1892 Claude Monet, Rouen, 1892
Claude Monet, Rouen, 1893 Claude Monet, Rouen, full sunlight, 1894 Claude Monet, Rouen, 1894 Claude Monet, Rouen, sunlight, 1894 Claude Monet, Rouen, 1894
The Rouen Cathedral images are from the Wikimedia Project under a Creative Commons Attribution-ShareAlike license.

Water Lillies at the Museum of Modern Art, New York
WLA moma Reflections of Clouds on the Water-Lily Pond Monet WLA moma Claude Monet Reflections of Clouds on the Water-Lily Pond