Cable-Free Elevators Will Soar To New Heights, And Move Sideways - Businessweek &quot;For architects and builders, the revolutionary elevator technology opens up opportunities to experiment with unconventional shapes and groundbreaking heights. &#x27;The mile-high building is easily achievable—as would be a two-and-a-half-mile building,&#x27; Olley says. But he’ll have to wait until at least 2016, when ThyssenKrupp will finish building a test tower in Rottweil, Germany.&quot;