The landscape is dotted with many a franchise business in every industry imaginable. Investing in a franchise requires that you do your due diligence. There are numerous pros and cons for starting a "Turnkey" business.
The cost of opening a franchise runs the gamut from a few hundred dollars to figures in the millions. It depends on what business you're looking to operate, the particular segment you're entering and a host of other factors. The majority of franchise opportunities require an upfront fee payable to the franchisor in exchange for the tools, ongoing support, and training provided.
Industry Resources & Inspiration
International Franchise Association
The American Association of Franchisees & Dealers (AAFD)