IcoFX - IcoFX is an all-in-one solution for icon creation, extraction and editing.
VistaCreate - The VistaCreate is a free and global digital platform which is known for sharing, searching, finding, and creating great art.
JDraw - Open Source SF.net
Aseprite - Aseprite is an art program dedicated to the creation of pixel art.
IconsExtract - Extract icons and cursors stored in EXE, DLL, OCX, CPL files
Musée du Louvre - Musée du Louvre is a one-stop destination for you to explore the historical and modern artwork.