I absolutely agree... the Musée d'Orsay is a wonderful building and I love that the Crystarium exhibits some of that excellent architecture. It also has some elements of Joseph Paxton's Crystal Palace that was built in the UK (burnt down sometime in the 1930s I believe). Here's an image...
As for whether the option to have access to the Z-axis as an option for players... I personally like the furniture glitches... I think its a great idea but it might present some caveats for the Dev Team. Those functions are great in game design development (and software like Rhino, 3D-Max, Auto-CAD and so on)... but they have their challenges.
