This article was pretty interesting in that most of these companies are rarely talked about by the financial media, but have been unbelievable investments. It really goes to show that if you buy something at the right price and are willing to hold it substantial returns can be made. Obviously for some of the tech related ones especially, some luck is required as well to find the winning racehorse in a crowded and changing field.
http://www.smartmoney.com/invest/stocks/the-10-best-stocks-of-the-past-20-years-1331582653834/#tabs
INVESTING IN THE FINANCIAL MARKETS INVOLVES RISKS. OPTIONS ARE NOT SUITABLE FOR ALL INVESTORS.