LifestyleStar architect Helmut Jahn turns 75To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoLifestyle01/03/2015January 3, 2015He built the Frankfurt trade fair tower, the Berlin Sony Center and the Veer Towers in Las Vegas. Helmut Jahn is considered one of the most successful German architects. On January 4, he marks his 75th birthday.https://p.dw.com/p/1EETDAdvertisement