Apache OpenOffice - The Free and Open Productivity Suite
The official home page of the Apache OpenOffice open source project, home of OpenOffice Writer, Calc, Impress, Draw and Base.
Inkscape. Draw Freely.
Inkscape is a Vector Graphics Editor, similar to Adobe Illustrator, that strives to be SVG Compliant, open source, responsive and extensible.
Architecture Design Architectural Images Drawings History and More - ArchitectureWeek Great Buildings
Architecture around the world and across history - 1000 classics of world architecture in an online multimedia encyclopedia with photos, drawings, bibliographies, and live 3D models.