Long ago there was a cool website where you could download a program which allowed you to explore zones off-line. There were no mobs in these zones but you could learn the layouts, enjoy the graphics, etc.
This program stopped working after one expansion, when Sony instituted a major change in how zone content was stored in files. But even after this expansion you could explore zones through at least Luclin, I think, maybe even PoP.
Anyone remember this or have a link?