If it's going to be just me there, I think OF has a great answer with the Smithsonian. Maybe the Museum of Science and Industry in Chicago.

Now if wyndhy's thought about getting to take stuff home with you at the end of the day works out I'll go for any of the US Mints.

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It takes a gutless mouse to play only when the cat's away.

No love, no friendship, can cross the path of our destiny without leaving some mark on it forever. ~~ Francois Mocuriac

Confucius say, "He who masturbate into cash register come into money."

An optimist looks at the glass and says it's half full. A pessimist looks at the glass and says it's half empty. A Cubs fan looks at the glass and says, "When's it gonna spill?"

Deus Impetitio Esuritori Nullus