The Beijing Olympics was reported to have cost around 50 Billion US Dollars (high estimate).
These included new subway lines, an airport terminal, light railway, roads and sporting venues.
Just the Olympic Stadium, nicknamed the Bird's Nest cost 500million US Dollars, much of which went on the 41,875 tonnes of steel included in the unusual lattice design.
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The Beijing Olympic games is set to be the most expensive ever held, with total costs around 295 billion yuan ($43.13 billion).