Image 1 of 13: Riot police force protesters back across the Kasr Al Nile Bridge as they attempt to get into Tahrir Square in downtown Cairo, Egypt.
Image 1 of 13: Protesters ride an armored personnel carrier towards the Nile.
Image 1 of 13: Protesters flee a volley tear gas in Tarhir Square.
Image 1 of 13: Protesters carry an injured man during clashes with riot police near Tahrir Square.
Image 1 of 13: Protesters carry an army captain on their shoulders after he tore up a poster of Egyptian President Hosni Mubarak.
Image 1 of 13: Marchers shake hands with Egyptian Army soldiers on tanks during a demonstration.
Image 1 of 13: Protesters are hit by a water cannon in front of The l-Istiqama Mosque, as they're watched by riot police in Giza.
Image 1 of 13: Smoke billows up into the late evening sky.
Image 1 of 13: An army tank stands near the remains of a burnt out armored personnel carrier in Tahrir Square.
Image 1 of 13: An Egyptian man looks out onto a burning government building from a bridge in central.
Image 1 of 13: An Egyptian man loots a computer from the burning headquarters of the of the ruling National Democratic party.
Image 1 of 13: Looters roll a chair stolen from the burning headquarters of the of the ruling National Democratic party.
Image 1 of 13: Army tanks line up in Tahrir Square.
A precipitation of culminated anger is visited upon President Mubarak who the people are becoming increasingly intolerant toward in waves of anger. Suitably labelled, this day is held in honor of this expression of ultimate discontent with the status quo.