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>The architects for the interior exhibition space were from Golden Metak Productions. Visitors had access to four large theme platforms divided into seven levels. The building included a 37-metre-long escalator, the longest ever built at the time. The Minirail monorail ran through the pavilion. [Wiki](http://en.wikipedia.org/wiki/Montreal_Biosph%C3%A8re)
Raining burning acrylic from the dome shell, it would be otherworldly.
Edit: [Here it is today](http://upload.wikimedia.org/wikipedia/commons/0/03/Montreal_Biosphere.JPG)