Get to know the medieval city of regensburg on a day trip from munich by rail board a train with your guide and on arrival in regensburg take an illuminating walking tour of its charming unesco listed old town altstadt explore narrow lanes and squares flanked by tall town houses and see the 12th century stone bridge decorative regensburg cathedral dom st peter and other sights that testify to the citys medieval trading past afterward enjoy ample free time to explore at your leisure b