The Hong Kong Lego User Group has taken Olympic fanaticism to the extreme, with a Beijing-like replica that includes Olympic venues like the Bird’s Nest, Water Cube, and Olympic Village. The model has over 300,000 Lego blocks and 4,500 figurines (note the stormtroopers in the Greek Village).

More pictures here

Also, see the Olympic Games History in Lego (you wont regret it!)