In June 2017 the engineering company thyssenkrupp Elevator AG began operating the world's first elevator capable of moving horizontally as well as vertically. Called the MULTI, the new concept mounts elevator cabins on rails instead of suspending them on cables, offering increased flexibility of movement and exciting opportunities for architects to begin rethinking how large buildings and building complexes are designed. The first fully operational prototype is now running in a specially built tower located in Rottweil, Germany.