Best ways to get exposure to assets like gold and silver, as well as currencies such as franc and yen in retirement accounts?

I called my broker (Fidelity) and had a fairly useless call about this. Right now I'm in cash and doing a bit of swing and day trading just due to the volatility right now. But I hate doing this as it eats up a lot of my time.

I spend a lot of time in Europe, so even being in cash right now I'm actually losing significant amounts of money to the falling dollar against the euro.

So what funds should I be looking at in my fidelity ira and roth ira accounts to get exposure to different currencies and assets like gold and silver? Are there other currencies and assets I could be looking at?