How do you test high-rise elevators in a country which has hardly any skyscrapers? By going underground, of course! Welcome to our Tytyri high-rise laboratories, the deepest elevator-testing facility in the world. Operating inside a working limestone mine in Finland, they’re located 362 meters below sea level – deep enough to swallow the Eiffel Tower! Fred Mills from The B1M ventured beneath the surface to discover how our high-rise elevators get put through their paces under the harshest of con