At the transport logistic 2019 trade fair in Munich, the Technical University of Munich is presenting a prototype for a train that runs in a vacuum tube. The success speaks for itself, as the makers were able to win the Hyperloop SpaceX competition (Elon Musk) with the prototype.
The train hovers over the track and can theoretically travel at more than 1,000 km/h. The costs are still too high for widespread use - but it's definitely a very exciting topic!