An entire city block in downtown New Orleans is being transformed into the Jung Hotel, a $130-million project with a $76-million construction tab.

Nearly five decades and $4 billion into the effort to build New York City’s Water Tunnel No. 3, the monumental project’s official end is not yet in sight.

Outdated paving and increased traf c at Laredo International Airport are driving the need for improvement projects through 2020.

Thanks to a structural-steel hat truss, the 10-story tower of the 240-ft-tall New United States Courthouse, Los Angeles, appears to balance on its core, hovering over the ground as if it were a sculpture on a pedestal.