If you want to visit Sweden and are a citizen of a country outside the EU, you may need a visa. You will find more information via this link.
If you have any questions regarding brexit and how it may affect your visit to Sweden, please check this link.
Plan your holiday on Sweden's official website for tourism and travel information via this link.
Studyinsweden.se is the official resource on higher education in Sweden for international students. You will reach the website via this link.