Remembering September 11th

Eight years after the terrorist attacks of September 11th, 2001, we remember and here, take a look back, and a look at the present. This year's remembrance is emphasizing volunteerism and service, honoring the private citizens that volunteered after the attacks and encouraging the observance of the anniversary to be a day of service. Construction at Ground Zero, the site of the former twin towers, is years behind because of construction delays, design disputes and litigation involving developers, state and local officials and insurance companies. At this point, One World Trade Center (formerly the Freedom Tower), the 120-story anchor building on the site, is scheduled for a 2013 completion. (38 photos total)

David Filipov looks for a picture of his father, Al Filipov, at the Tribute WTC Visitor Center in New York City. The center is run by the September 11th Families Association as a museum and memorial to the victims and history of the World Trade Center and the 9/11/2001 attacks. Filipov's father was on American Airlines Flight 11, the first plane flown into the towers. (Scott Lewis)

The Falling Man. A man, whose identity remains unknown, falls headfirst after jumping from the north tower of New York's World Trade Center after it was atacked on Tuesday, Sept. 11, 2001. This now-famous photograph has become iconic, and inspired an article in Esquire magazine, and a later documentary movie. (AP Photo/Richard Drew) #

The south tower of New York's World Trade Center collapses Tuesday, Sept. 11, 2001. (AP Photo/Richard Drew) #

An aerial view on September 17th, 2001 shows only a small portion of the scene where the World Trade Center collapsed following the Sept. 11 terrorist attack. Surrounding buildings were heavily damaged by the debris and massive force of the falling twin towers. (U.S. Navy photo by Chief Photographer's Mate Eric J. Tilford) #

An aerial view of the recovery operation underway in lower Manhattan at the site of the collapsed World Trade Center on October 4, 2001. (Andrea Booher/ FEMA News Photo) #

A street scene in lower Manhattan near the site of the terrorist attack on the World Trade Center in New York on Tuesday, Sept. 11, 2001. (AP Photo/Richard Drew) #

Firemen continue to fight the fires that sprout up from within the rubble of the World Trade Center in this September 19, 2001 file photo. (REUTERS/PA2 Tom Sperduto/US Coast Guard) #

Sunlight filters into the still-smoldering site of the World Trade Center attack highlighting the remains of Tower Two as workers riding in a basket suspended from a giant crane hover above, Saturday, Oct. 27, 2001, in New York. (AP Photo/William C. Lopez) #

Firefighters make their way over the ruins of the World Trade Center through clouds of smoke as work continues at ground zero Thursday, Oct. 11, 2001, in New York, one month after the terrorist attacks on the Trade Center. (AP Photo/Stan Honda) #

The sun streams through the dust over the wreckage of the World Trade Center on September 15, 2001. (Andrea Booher/FEMA News Photo) #

Exhibit #P200336 from the United States v. Zacarias Moussaoui Criminal trial No. 01-455-A - A collage of photographs of almost 3,000 victims, nearly all of those who were killed during the terrorist attacks on September 11, 2001 (missing are 92 of the victims and all of the terrorists). (USDOJ) #

The "Tribute in Light" is seen near the World Trade Center site on September 10, 2009 in New York City. (Mario Tama/Getty Images) #

Drops of rain fall through the "Tribute in Light" near the World Trade Center site on September 10, 2009 in New York City. (Mario Tama/Getty Images) #

An airfone recovered from the wreckage of Flight 93, left, and a Pentagon ID from Patrick Dunn are seen at an exhibit at the Smithsonian containing artifacts from the 9/11 attacks, Wednesday, Sept. 9, 2009 in Washington, D.C. (AP Photo/Evan Vucci) #

Albany, N.Y., firefighter Brian Rhatigan of Albany's Engine 9 looks at the permanent exhibit of artifacts from the World Trade Center attack which includes New York City's fire department's Engine 6, background, on Wednesday, Sept. 4, 2002, at the New York State Museum in Albany, N.Y. (AP Photo/Jim McKnight) #

The mangled TV antenna from the World Trade Center anchors the 9/11 exhibit with a wall of that days front pages from around the world at the new Newseum building on April 1, 2008 in Washington, D.C. (TIM SLOAN/AFP/Getty Images) #

The World Trade Center site, lower center, and New York's financial district are shown in this aerial photo taken on March 22, 2009. (AP Photo/Mark Lennihan) #

Construction of One World Trade Center, previously called the Freedom Tower, continues on September 8, 2009 in New York City. (Rick Gershon/Getty Images) #

A PATH commuter train enters the World Trade Center site in New York, U.S., on Tuesday, Sept. 8, 2009. (Daniel Acker/Bloomberg) #

In this U.S. Navy file photo of May 28, 2002, cleanup and recovery workers carefully lower a steel beam, the "Last Column" - the final piece of debris to be removed from Ground Zero in a ceremony at the World Trade Center disaster site in New York. (AP Photo/ U.S. Navy, Photographers Mate 2nd Class Bob Houlihan) #

Workers and officials watch as the historic "Last Column," (covered in white) site is returned on August 24, 2009 for permanent installation in the 9/11 Memorial Museum at the WTC site in New York. The 36-foot high "Last Column" was covered in tributes from workers, rescue personnel and family members before the column was removed from the site, marking the end of the recovery efforts in May 2002. (STAN HONDA/AFP/Getty Images) #

In this photo taken Sept. 2, 2009, ironworkers use torches to cut steel at 1 World Trade Center in New York. The tower, formerly known as the Freedom Tower, will rise to a height of 1,776 feet (541 meters). (AP Photo/Mark Lennihan) #

The World Trade Center construction site is shown as it appeared this morning, Friday, Sept. 11, 2009 in New York. (AP Photo/Mark Lennihan) #

A young woman's picture is surrounded by umbrellas as friends and relatives of the victims of the Sept. 11, 2001 attacks gather for a commemoration ceremony at Zuccotti Park, adjacent to ground zero, on the eighth anniversary of the terrorist attacks on the World Trade Center, Friday, Sept. 11, 2009 in New York. (AP Photo/Jason DeCrow) #

Frances Watson holds a picture of her niece CeeCee Coss Lyles, who was a flight attendant of United Airlines Flight 93, in front of a plaque unveiled by US House Speaker Nancy Pelosi and Senate Majority Leader Harry Reid dedicated to Flight 93, at the East Front Lobby of the Capitol Hill in Washington, DC, on September 9, 2009. (JEWEL SAMAD/AFP/Getty Images) #

Tom Cody, a policeman from Chicago plays bagpipes in tribute to the passengers and crew of United Flight 93 at the Flight 93 Temporary Memorial outside Shanksville, Pennsylvania, September 10, 2009. (REUTERS/ Jason Cohn) #

A woman looks at items left at the Flight 93 Temporary Memorial outside Shanksville, Pennsylvania, September 10, 2009. (REUTERS/Jason Cohn) #

The Pentagon Memorial illuminated at night, photographed in Arlington, Virginia on Wednesday, Sept. 24, 2008. (Globe Photo/Wiqan Ang) #

A family member of a victim of the 9/11 attack walks through the Pentagon Memorial before a rememberance ceremony September 11, 2009 in Arlington, Virginia. U.S. President Barack Obama joined staff and family members at the Pentagon to comemorate the eighth anniversary of the September 11 attacks. (Mark Wilson/Getty Images) #

A woman takes a photo of a plaque that honors the victims of Flight 93 that was unveiled at the U.S. Capitol Wednesday, Sept. 9, 2009, in Washington, D.C. (AP Photo/Evan Vucci) #

Sarah Wainio shows the name of her sister Honor, who was killed on Flight 93, tattooed to her wrist, Wednesday, Sept. 9, 2009 in Washington, D.C. (AP Photo/Evan Vucci) #

In this Sept. 2, 2009 photo, Angie Kardashian, who worked as a volunteer in New York after the 9/11 attacks, poses for a photo at her home in Tustin, Calif. Emphasis on volunteerism and service is being made on this 8th anniversary of the attacks. (AP Photo/Chris Carlson) #

Campers danced during nearly the entire lunch on Wednesday, August 19, 2009 in America's Camp, a camp set up in 2002 for kids who lost a parent (or parents) in the attacks of 9/11, and also for children of fire fighters or police officers killed in the line of duty. (Dina Rudick/Globe Staff) #

Family members of victims pay their respects at the site of the former twin towers on the eighth anniversary of the attacks on the World Trade Center, in New York, September 11, 2009. (REUTERS/Gary Hershorn) #

Family members of September 11th attack victims pay their respects on September 11, 2009 at the Ground Zero reflecting pool during the 8th anniversary commemoration ceremony. (CHANG W. LEE/AFP/Getty Images) #

U.S. soldiers from Combined Security Transition Command Afghanistan pay their respect during 9/11 remembrance ceremony at Camp Eggers in Kabul, Afghanistan, at sunset Friday, Sept. 11, 2009. (AP Photo/Manish Swarup) #

Flowers float in the reflecting pool after family members of victims placed them as they gathered at Ground Zero during a 9/11 memorial ceremony on September 11, 2009 in New York City. (Chang W. Lee/Getty Images) #

Flowers now fill the reflecting pool during the eighth anniversary remembrance of the attacks on New York and Washington, in New York September 11, 2009. (REUTERS/Chip East) #