Today, the museum is most famous for its collections of Impressionist, Post-Impressionist, and American paintings. There are more than 30 paintings by Claude Monet in the Impressionist and Post-Impressionist collection. These include six of Monet's "Haystacks" and a number of his "Water Lilies". Also in the collection are important works by Pierre-Auguste Renoir such as "Two Sisters (On the Terrace)" and Henri Matisse's "The Bathers", Paul Cézanne's "The Basket of Apples", and "Madame Cézanne in a Yellow Chair." "At the Moulin Rouge" by Henri de Toulouse-Lautrec is another highlight, as are Georges Seurat's "Sunday Afternoon on the Island of La Grande Jatte" and Gustave Caillebotte's "Paris Street; Rainy Day". Non-French paintings of the Impressionist and Post-Impressionist collection include Vincent Van Gogh's "Bedroom in Arles" and "Self-portrait, 1887". The museum also has American art works including Grant Wood's "American Gothic," Edward Hopper's "Nighthawks" and Mary Cassatt's "The Child's Bath." In September 2010, the Art Institute launched its first mobile application. This application is a catalogue (guide) to this Impressionist and Post-Impressionist collection.