Quote from Marshall in The Final Page (Part 2)
Future Ted: [v.o.] So I had promised not to tell anyone about Barney's plan to propose to Patrice. But I knew deep down Robin deserved to know. Marshall: Uh, there he is! The youngest architect ever to build a skyscraper in New York City! The shockingly still single Ted Mosby. You hear that, ladies? Lily: I can't believe the GNB Tower opens tonight. Ted, your building finally gets unveiled to the whole world. Marshall: [gasps] You hear that, ladies?!