Here we go one step beyond the basics and suggest that the best investment funds for 2014 and beyond could be funds that invest money in alternative investments. You can debate whether diversified stock funds or bond funds will be the best funds to invest money in, but your best investment could be funds that invest money in alternative investments like gold, oil, and maybe even real estate stocks.Informed investors know that you should invest money in more than one area in order to have a diversified portfolio. Most investors think that the best investment strategy is to own the best funds, and that your only choices are diversified stock funds and bond funds. Few have a handle on the arena called “alternative investments”. Where do you think the smart investors will invest money when neither stocks (in general) nor bonds look attractive and safe investments are paying record low interest rates?The top dogs look around for opportunities that are “outside of the box” in search of their best investment alternatives. Welcome to the world of alternative investments. As an average investor trying to find the best funds you might want to broaden your horizons as well. If our economy continues to be lackluster and interest rates rise in 2014 and beyond both diversified stock funds and bond funds could take a hit. So, where can you invest money for higher returns if things turn sour in 2014 and/or 2015?Gold is not cheap anymore but it is well below its highs as I write this. Gold funds invest money in stocks in the gold and silver mining industry, and they took a major hit in 2013. Historically, gold has been one of the best investment alternatives in times of high uncertainty and crisis. Gold funds might be one of the best funds if things get ugly in 2014 and beyond. They may or may not be your best investment, but adding them to your portfolio at this time to add more diversification could be a good idea just in case.Another alternative investment that’s a candidate for best investment ideas: oil and other natural resources. Your best funds to invest money in here and keep things simple are called natural resources funds. They too have proven to be good performers when the stock market in general is having a rough time. You might think that gasoline prices at the pump (and oil prices) are high now, but think back a few years. Prices can always go higher, even in a bad economy.And then there’s real estate as an alternative investment. This industry has recovered from the financial crisis lows, in no small part due to low interest rates. What will happen if rates climb as the economy sputters? Investors usually invest money in real estate with borrowed money. The truth of the matter is that interest rates are still low by historical standards. Real estate funds can be one of your best investment alternatives as investors rush in to buy before rates climb further. The best funds here invest money in real estate investment trusts and other companies in the real estate sector, like home builders. Caution: when rates rise significantly the real estate industry can sputter.Why do I suggest that the best funds in 2014 and beyond could be those that invest money in specialized sectors like gold, natural resources and perhaps real estate? Historically, in bad times for the economy and stock market in general these industries can attract money as investors search for the best investment alternatives to invest money in. Both stocks (in general) and bonds are selling near historical highs. Bonds have been on a thirty year roll, and stocks have climbed 150% in less than five years. Neither looks cheap by any standard.In your search for the best investment alternatives to make your money grow, sometimes you need to look outside of the box. You need to invest money so that some of it is safe and available for future opportunities. And in times like 2014 and beyond it’s a good idea to further diversify into alternative investments. The simplest and best investment vehicle for the average investor is mutual funds. The best funds to add to your portfolio are those that can swim against the tide when it goes out.