The Bellagio is Vegas' original pleasure villa, at the edge of an artificial lake with more than 1, 000 dancing fountains.

BBC: Mini guide to Las Vegas

Organizers say the expo will feature, among other attractions, 50, 000 square meters of exhibition space, three islands in an artificial lake and the world's largest flag.

CNN: Glancing Back

Brooks points out the crystallized gypsum disguised as marble columns, the Styrofoam used to fill gaps in the palace's building blocks, and the most fundamental flaw: The foundations of the palace, set in an artificial lake, were designed to withstand a 200, 000 square-foot structure.

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