4d-space
- 4d-plane
- kleins bottle
- hypercube
   stereo
   projection

5d-space
- 5d-plane
- hypercube
   stereo
   projection

6d-space
- hypercube
   stereo
   projection

7d-space
- hypercube

(java-applets)

4d-plane. Manual rotation with the mouse button held down.