Here is an excellent Tutorial from Danfong on how to produce a Sky Dome
an accurately textured skydome model for SketchUp. This uses a ’sky’ panorama painted onto the inside of a large hemisphere - a quick way to fake a 360 degree backdrop for 3D models
sketchup models Huge collection of KNOLL office
furniture...various file types for download but most importantly
SketchUp! Just click on the image and download SketchUp file under
'Download Associated Files' Enjoy! :)) clik here for download