They’re knocking down New York’s famous Hotel Pennsylvania.

For more than 100 years, it was situated just across Seventh Ave. from the previously demolished Pennsylvania Station. The station’s demolition in 1963 — sold for the air rights its massive footprint controlled — fired up New Yorkers and it was vowed that never again would such sacrilege be wrought on such an historic Manhattan building.

Well, that is, until now. The Pennsylvania Railroad’s (PRR) historic hotel, built in 1919, and once the world’s largest with 1,200 rooms, wasn’t deemed worthy of preservation by the commission in charge of such things.

At first, things looked good when the Hotel Pennsylvania Preservation Society was formed to lobby for the hotel’s preservation. In November, 2007, the Manhattan Community Board 5 voted 21-8 in support of a landmark designation. Three months later, the New York City Landmarks Preservation Commission (LPC) rejected the landmark request. Demolition, taking place from the top down, will be completed this July. The hotel will be replaced by a skyscraper to be called PENN15.