3D Center of Art and Photography  
1928 Northwest Lovejoy
Portland, OR 97209
503-227-6667

The only museum/gallery in the United States dedicated solely to contemporary and antique 3D art. They offer 3D slide shows, antique stereo cameras and viewers, an interactive display on how 3D vision works, computer stations, and a small gift store. There are different featured 3D artists each month.