Schengen visa is the name of the visa that you can enter all European countries with a single visa. In short, a single visa can get you into 36 countries. You can apply for a “Schengen Visa” at the consulate of any European country.
It is recommended that you obtain/apply for a Schengen visa from the country you will first go to.
Since the Netherlands, France, Italy and Germany issue long visas for consecutive purchases; It can be preferred more than countries such as Hungary, Greece, Norway.
Documents vary depending on people, countries and visa type. Generally, the following documents are requested for Schengen Visa:
Visa Application Petition
Visa Fee Receipt
Photocopy of your ID
Travel insurance and so on.
You can also go to the consulate of the visa you will receive the documents to find out exactly what you need.