Editor's note: Explore Europe's main protest parties in the map above. Click on each country to find out more. Watch The Business View with Nina dos Santos, weekdays at 12pm CET, for more on the European elections. This interactive map may not work on all mobile devices.
(CNN) -- France's far-right National Front has won a nationwide election for the first time, as far-right parties across Europe caused a political "earthquake," with a string of victories in voting for the European Parliament.