Aviation High School as Brooklyn School of Science & Humanities
Finch takes on a teaching job at a magnet school to investigate Caleb Phipps.
Source: Person of Interest — Wikia
“2πR” Filming Locations
Finch becomes a high school teacher to help out a brilliant but troubled student while Carter works to destroy the evidence linking Reese to the Man in the Suit.
Person of Interest episode “2πR” was filmed in New York in the United States of America.
51 Schermerhorn Street as Phipps's Apartment (exterior)
Finch watches Caleb Phipps leave his apartment late at night.
Source: NYC Permits List
Vernon Boulevard (between 49th & 50th) as Following Dealers
Fusco follows the two high school drug dealers and sees them give a bag of drug money to a homeless man.
Source: Person of Interest — Wikia
Lincoln Square Steak as Club
Carter goes to a club to find some DNA to swap with Reese's.
Source: NYC Permits List
Pay-O-Matic as Box Rentals 'R' Us
Finch and Fusco converge on the mailbox where Caleb Phipps picks up the drug money.
Parking Lot (off State Street) as Caleb meets Roman
Finch and Fusco trail Caleb Phipps to his supplier Roman where he is set upon by Lorenzo and his goons.
New York Transit Museum as Atlantic Avenue Station
Finch goes to the subway station to stop Caleb Phipps from committing suicide.
Source: Person of Interest — Wikia