Rare or expensive? But if rare, I own a katana used way back then, basically an antique. Still sharp and good for killing c; If expensive, I suppose probably sht in museums.
Thank God I'm not alone. I read that the exact same way... Anyway, I saw a Model T on the road one day.
The rarest thing I've ever seen in real life, would have to be life itself. Sorry for being cliche but it's true, the rarest and most precious thing in the universe... no money can be put on a life, it is worth more than any little peices of metal, sheets of paper, and numbers in a bank account that we seem to be convinced are worth so much. From the elegence and stern beauty of trees, and the fragile and fleeting life of a mosquito, life is something we take for granted. God I sound like a hippy right now. Sorry guys, take no notice of hippycel
Rarest, I would say the literal spacecraft at the Aerospace museum in Washington DC. I can't remember which rocket it is, but only one on display. Most valuable, I would say the Hope Diamond, also in Washington DC.
