Hudson Yards is officially open to the public. What was once the site of warehouses, tenements, and rail yards is now home to the largest development in New York City since Rockefeller Center. From the initial idea to the opening this week, it’s taken nearly 20 years— and $25 billion — to create the sprawling 28-acre megaproject on the west side of Manhattan.

The new neighborhood features supertall glass towers, luxury apartments, a high-end retail and restaurant hub, and a climbable honeycomb-like structure called the Vessel. And this is just phase one. Debuting in April, a new arts center called The Shed will be home to art galleries, concerts, and theater performances. There are also plans to build more public space, housing, and and even a new school. It’s a carefully-curated new neighborhood built from scratch.

This week on WNYC's Money Talking, Charlie Herman talks to Greg David, columnist at Crain’s New York Business, about the long road to the new Hudson Yards.