Nursing is a career within the health care sector that involves the care of individuals, families and communities. Responsibilies can range from making acute treatment decisions to providing inoculations in schools. If you ever wish to work abroad in some of the best paying countries there are a wide variety of options. Each country needs a work visa in order to be legally employed. It would be a much easier process if you would work with an international nursing travel agency. Here are some of the countries in the world with the highest paid nurses: all salaries are listed in USD. The working week is legally limited to 40 hours with the payment of premiums for all overtime or work at unusual hours. The United States has over 3 million Registered Nurses and they work in a variety of industries outside hospitals.