The Denver Mint is one of two mints in the country that has circulating coin presses and strikes the currency, with the other being the original — and more theatric — Philadelphia Mint.

Even if you hate the sound of excess change rattling around your pockets, you'll find a tour of the Denver branch of the United States Mint to be an interesting way to spend an hour or so.

According to CoinTrackers, only 12% of Washington quarters minted in 1932 came from the Denver mint. Another fun fact: George Washington faced left in the original design. However, it was changed ...