LIRR commuters wait at Penn Station during the evening rush...

LIRR commuters wait at Penn Station during the evening rush hour. (Aug. 24, 2010) Credit: Newsday / Alejandra Villa

Wednesday marked the 100th anniversary of the first Long Island Rail Road train that traveled across the East River to Penn Station. Railroad executives celebrated the anniversary by unveiling roughly 40 photos that span the history of the tunnels and Penn Station from construction to present.

"These tunnels still function 100 years after their opening, transformed rail travel in our region and continue today to be a very vital link . . . that connects our region," said LIRR president Helena Williams.

>> Read Pervaiz Shallwani's full story