 The nearest airport is part of the Baden Airpark (officially "Flughafen Karlsruhe/Baden-Baden") about southwest of Karlsruhe, with regular connections to airports in Germany and Europe in general.Frankfurt International Airport can be reached in about an hour and a half by car (one hour by Intercity Express); Stuttgart Airport can be reached in about one hour (about an hour and a half by train and S‑Bahn).Two interesting facts in transportation history are that both Karl Drais, the inventor of the bicycle, as well as Karl Benz, the inventor of the automobile were born in Karlsruhe.