I've just heard about the Museum of Hoaxes, " established in 1997 in order to promote knowledge about the phenomenon of hoaxes. "
The Museum is based in San Diego, CA, and is open to visitors 365 days a year.

Speaking of Museums, the Mutter Museum at the Philadelphia College of Physicians {a must see site}, now has a virtual tour

Have you heard about Who2??
Who2 is a question, like a cabbie's "Where to?"
For each famous figure, Who2 gives you the hard facts you're most likely looking for: birth and death dates, famous works, notorious trivia.
Classic authors, movie stars, famous frauds, kings and queens, mythical gods, cartoon dogs: anyone famous is fair game for Who2.
Go check it out