West 15th Street & 5th Avenue as Reese in Car
Reese listens to the police radio.
Source: Person of Interest — Wikia
“Zero Day” Filming Locations
Something is wrong with the Machine. After ten days without a new number, the Machine finally gives the team the name of a reclusive CEO who holds the key to what the virus is doing.
Person of Interest episode “Zero Day” was filmed in New York in the United States of America.
Meera Deli as Murder Scene
Reese approaches Carter while she is investigating the murder of several of Elias's people.
Source: Person of Interest — Wikia
6th Avenue (between 40th & 41st) as Camera on Street
Finch looks up at a surveillance camera and asks the Machine what is wrong.
Source: Person of Interest — Wikia
Central Road (between Hell Gate & Reilly) as Thornhill's Car Destroyed
Reese is waiting for Thornhill's car from the airport only to have it destroyed by a drone.
Source: Person of Interest — Wikia
Washington Square Park as Washington Square Park
Root blackmails Finch to come with her using a threat against Grace.
423 West Street as Thornhill's Apartment
Reese goes to investigate Ernest Thornhill's apartment and encounters Shaw.
Source: Person of Interest — Wikia
Courant Institute of Mathematical Sciences as Park near Coffee Shop
Finch calls Nathan while walking through a park and sees him leaving a nearby coffee shop.
Source: Person of Interest — Wikia
Think Coffee as Think Coffee
Nathan Ingram leaves a coffee shop and ignores a call from Finch.
Source: Person of Interest — Wikia
1 West 3rd Street as Finch's Library
In a flashback Finch follows Nathan into a building which turns out to be the library.
6th Avenue (between 41st & 42nd) as Payphone Spotting
Finch and Root walk down the street and see all the payphones being guarded by Greer's people.
Source: Person of Interest — Wikia
96 Clay Street as Carter's Raid
Carter acts on a tip regarding Beecher's killer and ends up shooting the suspect.
Source: Person of Interest — Wikia
New York Public Library as New York Public Library
Root and Finch go to the superuser payphone at the library and are followed shortly thereafter by Reese and Shaw.
Source: Person of Interest — Wikia