In fantasy games, when the PCs slay the fell beast and claim its hoard, it can be tough to conceptualize just how large that hoard actually is.
Enter The MegaPenny Project, which lets you visualize that most humble of American coins in large numbers. Very large numbers — like 50,000 pennies (a lot of money, but not a big pile), 1,000,000 pennies (an epic hoard, and yet still not that huge) and the economy-crushing 1,000,000,000,000,000,000 pennies (which is ginormous).
Substitute “gold pieces” for “pennies,” assume the gold pieces are a bit larger than pennies, and you really get a sense for just how large that dragon’s hoard might be. (Via Boing Boing.)