The National Palace, damaged in the 2010 earthquake lays in ruins in Port-au-Prince, Haiti. The nonprofit aid group founded by Hollywood star Sean Penn in the aftermath of Haiti's deadly 2010 earthquake will oversee demolition of the palace. The group, J/P HRO, is not charging for the work, which is expected to take about two months. (AP Photo/Dieu Nalio Chery)

The National Palace that was badly damaged in the 2010 earthquake in Haiti (AP Photo/Dieu Nalio Chery).

The second floor of the National Palace lays in ruins in Port-au-Prince, Haiti (AP Photo/Dieu Nalio Chery).

The National Palace stands damaged by an earthquake in Port-au-Prince, Haiti. Before year’s end, President Michel Martelly’s administration and the aid group started by Hollywood star Sean Penn will demolish the remains of the Beaux Arts structure so they can build a successor. Some of the surviving pieces of the palace will be carried away by hand by local preservationists (AP Photo/Dieu Nalio Chery).

Haiti's flag flies outside the earthquake damaged National Palace in Port-au-Prince, Haiti. Before year’s end, President Michel Martelly’s administration and the aid group started by Hollywood star Sean Penn will demolish the remains of the Beaux Arts structure so they can build a successor. Some of the surviving pieces of the palace will be carried away by hand by local preservationists (AP Photo/Dieu Nalio Chery)

Haiti's flag flies, seen from inside the earthquake damaged National Palace in Port-au-Prince, Haiti. Before year’s end, President Michel Martelly’s administration and the aid group started by Hollywood star Sean Penn will demolish the remains of the Beaux Arts structure so they can build a successor. Some of the surviving pieces of the palace will be carried away by hand by local preservationists (AP Photo/Dieu Nalio Chery).

Haiti's national coat of arms decorates a door inside the earthquake damaged National Palace in Port-au-Prince, Haiti (AP Photo/Dieu Nalio Chery).

A miniature model of Haiti's Palace of Justice sits inside the earthquake damaged National Palace in Port-au-Prince, Haiti (AP Photo/Dieu Nalio Chery)

Printers sit on a desk on the roof the earthquake damaged National Palace in Port-au-Prince, Haiti (AP Photo/Dieu Nalio Chery).

The presidential office lays in ruins at the earthquake damaged National Palace in Port-au-Prince, Haiti. Before year’s end, President Michel Martelly’s administration and the aid group started by Hollywood star Sean Penn will demolish the remains of the Beaux Arts structure so they can build a successor. Some of the surviving pieces of the palace will be carried away by hand by local preservationists (AP Photo/Dieu Nalio Chery).

A chair sits among the rubble of the earthquake damaged National Palace in Port-au-Prince, Haiti (AP Photo/Dieu Nalio Chery).

Haiti's President Michel Martelly sings out loud as he arrives for a press conference to announce the demolition of the earthquake damaged National Palace, in Port-au-Prince, Haiti, on Wednesday, August 22, 2012. The nonprofit aid group founded by Hollywood star Sean Penn in the aftermath of Haiti's deadly 2010 earthquake will oversee demolition of the National Palace. The group, J/P HRO, is not charging for the work, which is expected to take about two months. (AP Photo/Dieu Nalio Chery)

Band members stand in front of a platform where Haiti's President Michel Martelly holds a press conference announcing the demolition of the earthquake damaged National Palace, in Port-au-Prince, Haiti, Wednesday, August 22, 2012 (AP Photo/Dieu Nalio Chery).

Haiti's President Michel Martelly, second from left, stands at attention on a platform as band members play the country's national anthem, before the start of Martelly's press conference, announcing the demolition of the earthquake damaged National Palace, in Port-au-Prince, Haiti, Wednesday, August 22, 2012. The nonprofit aid group founded by Hollywood star Sean Penn in the aftermath of Haiti's deadly 2010 earthquake will oversee demolition of the National Palace. The group, J/P HRO, is not charging for the work, which is expected to take about two months (AP Photo/Dieu Nalio Chery).