If you have lived in Spain for 10 years, have successfully passed all the tests and obtained citizenship, you will be able to travel to 190 countries around the world wither visa-free or with the simplified procedure where an entry visa is issued at the passport control on arrival.
In the annual passport index, which estimates citizens’ freedom of movement of various countries, Spain ranks fourth, after Japan, Singapore, South Korea, and Germany.
When it comes to the European Union, Spanish residents can not only travel there freely, but also live, work, do business and study in any EU country without any constraints.