The area comprises 26 European countries which abolished controls at internal borders implemented in 1995. It resembles a single state for international travel purposes with external border controls and common visas,
The Schengen Area currently covers an area mainly in Western and Southern Europe with a population of over 400 million people The original Schengen Agreement was signed by Germany, France, Belgium, The Netherlands and Luxembourg.
Hungary's government has adopted the toughest stance against migrants in the EU, but allows rich foreigners to buy permanent residency which gives them a free Schengen visa. Dan Nolan reports from Budapest.
Open borders are a fundamental advantage to living in the European Union. You can go from, say, Spain to Germany without a passport and without a visa. Now Africa wants to introduce a similar model. While the vision is to some day allow for unrestricted travel across the continent the disparities between the African countries pose a huge challenge to the project.