From "Eyes Wide Open," a project of The American Friends Service Committee. Boots are lined up representing US soldiers killed in the Iraq war, shoes representing Iraqi civilians. A friend of mine saw this exhibit in Washington, DC and said it was as moving to her as the Vietnam Memorial. From the exhibition website:

Due to the growing number of US casualties, the Eyes Wide Open National Exhibit has become too large for the AFSC to tour. Instead, the AFSC will be splitting the exhibit into 50 state exhibits to continue the work of bringing Eyes Wide Open into smaller communities across the country. Working with AFSC offices, Quaker meetings and peace groups across the country, the Eyes Wide Open state exhibits feature the boots of the soldiers from their home states in addition to a memorial to the Iraqi civilian casualties.