The first metro line was designed as a way to transport passengers from the city center to City Park without the need to use Andrassy Street, where construction began in 1894 and was implemented by the German company Siemens & Halske AG, and employed 2,000 workers using the latest machinery until it opened on May 2 1896 (the year of the thousandth anniversary of the arrival of the Magyars) by Emperor Franz Joseph; The surprising fact is that it only took 21 months to build! It was also recognized as a World Heritage Site in 2002, so when you are in the city, do not miss a visit to the Underground Railroad Museum with your family to learn about the abandoned section of the tracks that include old metro cars.