Build the tallest building in the world with Bitcoin and build it in New York and offer it primarily for Bitcoin Businesses?
http://www.cnn.com/2013/07/24/travel/sky-city-breaks-ground/$1.5 Billion
Not only that, but what about we make a Structure inside the building with an engraved public address/private key, so that the building will always be worth that much. Instead of a private/public key built on a BTC Physical coin, make it on the actual Bitcoin Building.
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We would also need someone or an entity that would be accountable for all the Bitcoins we donate to build this building.
Maybe we can even put up a site showing all the donations and the progress to reach x amount goal to start the project.
Then we can look for construction companies to do it and all the necessary people to make this a reality.
The world trade center symbolized the power of capitalism and the freedom it represents.
The Bitcoin Center/Building (Whatever we call it) would represent true freedom and decentralization. Maybe on the top of the building instead of a Helipad, the roof would be the giant Orange "
BTC" Symbol so when viewed from space/airplane it would appear beautifu