EXPAT FAQ
https://www.easyexpat.com/en/faq.htm
Schengen Area: Do I need a visa?
Citizens or permanent residents of countries outside the Schengen Area, but which are within the European Union or the European Economic Area, do not need a visa to travel to Europe within the Schengen Area. Borderless travel within the Schengen Area means that EU and EEA citizens and permanent residents only ned to show a passport or identification card upon entering the region at any point, and again upon leaving. Citizens and permanent residents of the EU and EEA may also relocate to any country in Europe within the Schengen Area to attend school or work without obtaining a visa.
Citizens and permanent residents of many countries outside the EU and EEA (including the United States, Canada, Mexico, Brazil, Argentina, Chile, Japan, South Korea, Taiwan, Australia, among others) may visit the Schengen Area without obtaining a visa, and remain for up to 90 days within a six-month period. Borderless travel also allows citizens of visa exempt countries to move freely throughout the Schengen Area after showing a valid passport once upon entering the region and again upon leaving.
Airport Transit Visa
Citizens and residents of some countries may require an airport transit visa if they have a stopover within the Schengen Area, even if they do not intend to spend any time in the region. If you plan to travel outside the Schengen Area, you may need to obtain additional visas.