Swedish Railways, known as SJ, is the national railway company of Sweden. It operates passenger trains across the country, connecting major cities and regions. The service includes high-speed trains, regional trains, and night trains, making travel convenient for both locals and tourists. Founded in 1856, SJ has a long history of providing rail transport. The company focuses on sustainability and aims to reduce its environmental impact by promoting train travel as an eco-friendly alternative to cars and planes. SJ also offers various ticket options and services to enhance the travel experience.