Many countries in Europe work together. 
Many lands in Europe work together.
People can drive or walk to new lands. This helps them go to work. It also helps them trade goods. 
Some small lands are part of this too. They have open borders because they are tiny.
Many people live in these lands. Millions of people cross the lines every day.
It is a big way for people to stay connected.
The Schengen Area is a group of European countries.
Many countries belong to this group. Most are in the European Union. But some are not. Iceland, Liechtenstein, Norway, and Switzerland are also members. Even tiny places like Monaco and Vatican City have open borders. 
This system helps people in many ways. About 1.7 million people cross borders to work every day. 
It also helps with trade. In 2015, there were 1.3 billion border crossings. Many of these were trucks carrying goods. This makes buying and selling things cheaper. Some countries are still working to join. Cyprus wants to join by 2026. Romania and Bulgaria are the newest members. They joined the group recently in 2024 and 2025.
The Schengen Area is a special group of European countries. These nations have agreed to remove border controls at their shared borders. 
This system works by having one set of rules for everyone. Instead of checking every person at every border, countries use a common visa policy. 
Long ago, borders in Europe were very different. Before World War I, many countries had loose border rules. Later, things changed and border checks became very common. 

There are many interesting facts about how the area grows. In 2015, there were 1.3 billion crossings of Schengen borders. About 1.7 million people cross borders to go to work every single day. 

Even countries that are not members can benefit from this system. Schengen countries have stronger controls on their outer borders. This helps keep the whole region secure. 

The Schengen Area is a unique system of open borders in Europe. It consists of many countries that have officially abolished border controls at their shared borders.
The mechanism of the Schengen Area relies on two main pillars: open internal borders and strict external borders. Within the zone, countries remove the physical checkpoints that usually separate nations. To compensate for this, the member states strengthen their control over the outer edges of the area. 
The area includes many different types of nations and political entities. Most members are part of the European Union, but four non-EU members also participate: Iceland, Liechtenstein, Norway, and Switzerland. 

The history of this system began with a desire for closer European cooperation. Before World War I, many borders were quite relaxed. However, the period between the two World Wars saw the rise of strict border controls and visas. After World War II, countries began forming customs unions to work together economically. In 1985, five members of the European Economic Community signed the Schengen Agreement in the village of Schengen, Luxembourg. 
The impact of the Schengen Area is massive in terms of both people and economics. The area covers a vast territory and has a population exceeding 450 million people. Every day, approximately 1.7 million people cross an internal border to commute to work. In some specific regions, these international commuters make up as much as one-third of the entire workforce. The movement of goods is also enormous. In 2015, there were 1.3 billion total border crossings. Of those, 57 million crossings involved the transport of goods by road, with a total value of €2.8 trillion. 
Joining the Schengen Area is a complex process that requires meeting strict criteria. The European Commission must evaluate a country's border legislation, infrastructure, and police cooperation. A country must also prove it has strong personal data protection and effective visa systems. Romania and Bulgaria are the most recent members to join. They saw their air and sea border controls lifted on March 31, 2024. Their land border controls were scheduled to lift on January 1, 2025. 
Some nations choose to remain outside the system to protect specific interests. Ireland maintains an "opt-out" to keep its Common Travel Area with the United Kingdom. This allows for passport-free travel and free movement between those two specific places. Even though Ireland is not in Schengen, it does participate in some parts of the system, such as the Schengen Information System, to benefit from security cooperation. The system shows how different nations can balance their own unique laws with the benefits of a massive, shared European space.
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