New York's Sedgewick Hotel where the Ghostbusters bust their first ghost is actually the Biltmore Hotel in downtown Los Angeles.

You can also see the Biltmore in Fight Club when Tyler Durden and what's-his-name go after the police commissioner.

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The first ghost Venkman, Ray and Egon see at the beginning of Ghostbusters is an evil old woman who rearranges the books and slimes the card catalog at the New York Public Library.

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This was a fully functional firehouse (hook & ladder 8) but there was talk earlier in the year that it was going to be shut down. The interior of Ghostbusters headquarters was shot in a firehouse in L.A.

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