1) Midtown: The Midtown flagship location of Pop Burger has shuttered. Grub Street noticed the location was on the auction block, though it was still open at that time. It has since closed. [GS]
2) Chelsea: Redwood Kitchenette & Bar has shuttered. Zagat reports that the old-timey diner (complete with Airstream trailer) has been closed for at least a week. The phone line still works but there's no answer. [Zagat]
3) Lower East Side: Rivington Street restaurant and coffee bar The National appears to have shuttered. It's been closed all this week, with no response by phone and no message indicating they're taking a vacation. [EaterWire]
4) East Village: 32 Avenue C has been vacated due to concerns about the building's structural integrity. The means the shutter of Maria's, a small streetside stand. [EV Grieve]
[Redwood]