Tuesday marks the one-year anniversary of the Boston Marathon bombings. Thousands have come together to pay tribute to those killed and to continue encouraging those who survived.
Three people died and more than 260 were wounded in the April 15, 2013 terrorist attack at the finish line.
On Tuesday, Vice President Joe Biden honored the victims in a ceremony at the Hynes Convention Center in Boston.
Meanwhile, President Barack Obama observed a moment of silence from the White House at 2:49 p.m., the exact time the first of the two bombs exploded at the marathon finish line.
Although some of the survivors stayed home to mark the date privately, many others wanted to remind the world they are "Boston strong."
"I don't think anybody knows what they're capable of doing until you're forced to be in it," marathon bombing survivor Roseann Sdoia said.
Heather Abbott, another survivor, said, "I learned that I'm much stronger and more resilient than I ever could have imagined."
Meanwhile, a month-long 3,300-mile relay has been taking place from Los Angeles to Boston to raise money for the wounded.