Service Contact Important addresses in Mainz: mainz STORE (Tourist information), Registration, pass and visa issues, permits of residence, Service centre ... Transport, journeys Mainz is at the heart of Europe, in close proximity to Frankfurt am Main and Frankfurt Hahn airports, and can be quickly and easily reached by road, train and even waterways. Accommodation The Guest is King in Mainz – in every price range! What do you like the most? Would you like a top-class hotel or rather a comfortable apartment in the heart of the Old Town? Events in Mainz Mainz is known for its lively festivities throughout the year - the carnival sessions or the Johannisnacht but also the historical Christmas Market. Come and experience the joy of life in Mainz!