A mail-coach station was opened in 1865, giving the square its name. The single-story station building ha sbeen preserved. Although dimensions were modest, the buiding took a long period of time to build - from 1852-1865. The Post Station was a whole complex with stables, coach-halls and service outhouses, but most of them were demolished when the subway station was built. Now the building is used as an expositio hall. Close to it you will see a funicular, which can easily get you to the Upper Town.