For more than 30 years, the Munich Model Railway Museum has been one of the largest miniature and model railway exhibitions in Germany. Originally, the HO gauge layout was designed in 1978, and opened in 1980. At first, the layout was growing up to almost 400 square meters. More and more attractions were added to the model railroad system, such as a fairground or the simulation of aircrafts at the miniature airport. In 2008, the entire model railway layout and its electronics were renewed: The model railway control was converted from analogue to digital operation by DCC format. On the whole, the rolling stock consists of locomotives, coaches, and trains of all eras in order to offer a great variety of railway traffic and railway history to visitors. There are old German steam locomotives as well as modern high speed trains, such as Intercity, Railjet and Intercity Express.