It would have lead into the load area. The main show building was never built.
Here is a great drawing showing what was built and what was proposed.
http://www.imagineeringdisney.com/blog/2012/2/17/rhine-river-cruise-mysteries.html
Partition walls are going to sound hollow regardless of whether or not they are blocking a once planned opening.OK, because I was reading this article: http://www.themeparktourist.com/fea...den-secrets-walt-disney-worlds-epcot?page=0,1
and I saw where they said that if you tap on the mural it will ring back hollow.
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