It is not only in the United States that the solemn anniversary was marked. Here, a girl is comforted by her mother during a candlelight service outside the U.S. Embassy in Tokyo, Japan.
A procession of bagpipes and drums on 7th Avenue heading towards the World Trade Center during the early morning hours of September 11, 2002.
Italian fireman stand behind a memorial shrine at the Santa Maria degli Angeli church in central Rome September 11, 2002 during a Mass to commemorate the events in New York a year ago. Rome's firmen held a service to remember their U.S. counterparts who died there last year.
An armed policeman stands guard outside the American Embassy in London, September 11, 2002. Security at key sites around London was increased on Wednesday on the first anniversary of the September 11 2001 attacks on the United States.
A Philippine policeman patrols the perimeter of the U.S. embassy in Manila September 11, 2002. Protesters waving flowers marked the anniversary of last year's terror attacks on American cities with a plea to the United States to avoid war with Iraq.
A Filipino child holds his toy gun as he looks at lighted candles during a pro-US rally outside the U.S. Embassy in Manila to commemorate the first year anniversary of the terrorist attacks on U.S. mainland on Sept. 11, 2002.
A woman lights a candle in the Athens Cathedral during a memorial service, on Wednesday, Sept. 11, 2002. The memorial service was held to honor the victims of the Sept. 11 terrorist attacks in the United States.
Pope John Paul II looks on at the end of a special general audience at the Vatican dedicated to commemorating the victims of the attacks on New York and Washington on Sept. 11, 2002.
United States Marines examine a memorial plaque at the U.S. embassy in Kabul, Sept. 11, 2002. A piece of the World Trade Center, buried under the flag pole, was unveiled in memory of the people who were killed on Sept. 11, 2001.
French President Jacques Chirac, center, and U.S. ambassador to France Howard Leach, right, marked the anniversary at the U.S. Ambassador's residence in Paris.
A Russian woman places flowers in front of the U.S. embassy in Moscow, Sept. 11, 2002.
Britain's Prince Harry lowers his head as he leaves London's St. Paul's Cathedral after a remembrance service.
A girl is overcome by emotion during a service of remembrance in London. England, America's closest ally since Sept. 11, mourned the heavy loss of British lives in the attacks amid a vast security operation to prevent London becoming the next target.
Hungarian firefighters commemorate the anniversary in Budapest, Sept. 11, 2002. Budapest is a sister city of New York.
Women supporters of Pakistan's religious party Jamat-e-Islami hold a rally to condemn global terrorism, Sept. 11, 2002.
People watch a live television transmission of the memorial services for victims of the Sept. 11 attacks at a street vendor's store in the Sabra Palestinian refugee camp in Beirut, Lebanon.
Thousands fill City Hall Square in Copenhagen, Denmark, to honor the Sept. 11 victims.
Japanese firefighters stand nearby a ceremony commemorating the attacks at ground zero in New York.
In Mexico, Janet Lopez, right, and her sister Elvia place candles on a homemade altar in honor of their brother Leobardo Lopez Pascual, a cook at Windows on the World who died Sept. 11.