NEW YORK -- Before leading a tour group underground, Michael Horodniceanu stopped in the dining concourse of Grand Central Terminal and asked his listeners to take note of the usual hubbub.

Riders who get off at the new terminal’s tracks ... save any time at the opening of Grand Central Madison on Wednesday, Hochul touted the benefits of walking underground.

The long-delayed Long Island Rail Road terminal beneath Grand Central will finally open Wednesday ... terminal named for its location running underground on Madison Avenue.

Ever wonder why you never see a double-decker or a 1980s-era M3 train at Grand Central Madison? The tight dimensions and steep grades of the underground tunnels leading to the new station make it ...

TODAY gets an exclusive tour of the new Grand Central Terminal that’s been built 150 feet underground in New York City. With an $11 billion price tag, it’s the biggest expansion since 1910.

And there are two other, lower-profile projects that are critical to train operations in and out of Grand Central, says MTA. They are the replacements of the terminal’s underground train-shed ...

Grand Central Madison’s first sit-down dining ... are completed above ground with connections to the underground station, including JP Morgan Chase's 1,400-foot-tall new global headquarters ...

Grand Central Madison. First conceived in the 1950s, this new station was built 14 stories underground, deep in Manhattan bedrock. It connects with new tunnels bored beneath Park Avenue ...

The new terminal replaced the previous Grand Central Station, swapping steam locomotives with electric trains and allowing everything to go underground. To make way for the magnificent entryway ...

We created a rock garden leading to this sanctuary in Grand Central station, and this is really ... also makes it quite unique.” Joji, an underground sushi restaurant in Grand Central.