Lascaux cave website has a virtual walkthrough that is visually quite stunning. The screencap above (click to magnify) shows a map on the lower right with a dot indicating your location; you can jump to specific sites using the navigation bar center bottom, and click on the screen for further details of selected images.
I believe the site is formed on a CGI rather than photographic basis, and you don't have any panning controls, but it's very impressive. I had never realized how very extensive the cave is.
The website is here. Via within the crainium.