NYPD officer at night
An NYPD officer watches a protest near Foley Square
Police with shields and helmets in Whitehall
Tahrir Square protest
Crowd in Tahrir Square after Friday prayers
The Green March
Mural depicting the Green March of 1975
Protesters and riot police in Whitehall
An NYPD lieutenant reviews police officers after a demonstration
Police and Big Ben
Police officers form a barrier outside the Palace of Westminster
Police and protesters meet on the Williamsburg Bridge
Photographs taken during a demonstration in London against the 1994 Criminal Justice Bill.
A small collection of photographs from Sidi Ifni, Guelmim-Oued Noun, Morocco.
Photographs taken at a protest in Tahrir Square, Cairo, in April 2011.
A collection of photographs of police officers and vehicles from the New York Police Department.