A Rare Look Inside The $8.3 Billion Construction Project Below Grand Central Terminal

The Chrysler Building glows in the night as Grand Central looms large.

The tunnels are vast enough to hold cranes and other large construction equipment.

Three men cast shadows and provide a frame of reference that shows just how enormous the tunnels are.

Machinery whirs all day in the artificial night.

Miles of new tunnel will make commuting much easier for many Long Island (and Queens) residents.

Underground, fluorescent graffiti provides some direction in a rare color photo from Suzuki.

One construction worker takes a break to read the newspaper under a massive light.

Troops of construction workers arrive each day to work on the project. The MTA has pushed its completion to a later date several times.

A man welds underneath a DANGER sign.

Three men survey the scene.

The site stands eight stories high.

Workers use dynamite.

Only six more years until the concourse is completed.

Now go inside an auto factory

See How Tesla Builds The All-Electric Model S In Just 3 Days >