Amr Abdallah Dalsh / Reuters
Hundreds of thousands of Egyptians gathered Tuesday in Cairo's Tahrir Square.
Chris Hondros / Getty Images
A large crowd looking for flights out of Egypt waits at Cairo airport.
Watch Egyptian President Hosni Mubarak's address.
Egyptian special forces secure the main floor Monday inside the Egyptian Museum in Cairo.
NBC News' Brian Williams interviews Egyptian opposition leader Mohammed ElBaradei.
Emilio Morenatti / AP
Protesters shout slogans Tuesday as they march toward Tahrir square in Cairo.
Miguel Medina / AFP - Getty Images
Anywhere from 100,000 to 2 million people gathered in Cairo's Tahrir Square, depending on whom you believe.