Thanks. Especially with the word Matterhorn on one of the pictures, I was relatively sure that it was not Disney World's but rather Disneyland's. But being that they were built relatively in a close time frame to each other I assumed the construction process would be the same. Looks like it was. Roof first, coaster second, sides last. That said it does look like construction techniques have since changed and I know they definitely built the track for rock and roller coaster first, and then the building. I'm also guessing Space Mountain at Hong Kong Disneyland was billed track first and then the building?