Boston Honors Victims, Survivors on Fifth Anniversary of Marathon Bombing

Sunday will mark the five-year anniversary of the Boston Marathon bombing that killed three people and injured more than 260. As the city prepares to cheer on the runners of the 122nd annual Boston Marathon on Monday, it will also commemorate the lives lost and affected by the terrorist attack.

Memorials to mark the spot where two bombs detonated near the finish line by Copley Square are set to be completed in the coming months. The memorials, a mix of granite, bronze and glass, were expected to be unveiled during the five-year anniversary, but work to complete them has taken longer than expected, The Boston Globe reported.

Boston Marathon bombing survivor Jeff Bauman stands before walking out to throw the first pitch before the Boston Red Sox play the Toronto Blue Jays at Boston's Fenway Park on April 18, 2016. Sunday will mark the five-year anniversary of the deadly attack. Adam Glanzman/Getty Images

"We were really pushing for it to be done for the fifth anniversary, but it's more important to get it right than meet an artificial deadline," Boston's chief diversity officer Donny Tavares told The Boston Globe. "The families wanted it to be a little more personal than the original design, and we went back and addressed their wishes."

The memorials will not be the only tributes on the bombing's anniversary. The Attleboro Arts Museum in Attleboro, Massachusetts, is marking the event with a new exhibit called "A Long-Distance Relationship: The 26.2-Mile Journey."

The exhibit will include 200 running shoes left by mourners near the marathon finish, racing wheelchairs and a Kyriakides wreath, as well as paintings and art inspired by marathon runners. It will run from April 10 to May 5, according to the museum's website. Attleboro requests that reservations be made to view the exhibit.

The Boston Red Sox have also planned a tribute for the victims and survivors of the bombing. The beloved baseball team will honor the five-year anniversary on Friday before their game against the Baltimore Orioles at Fenway Park.

According to NESN, the ceremony will be held before the 7:10 p.m. first pitch. It will involve the participation of family members of the victims. The event at Fenway is just one in a weekend-long series of charitable events and tributes that are part of One Boston Day, which aims to encourage acts of kindness and offers ways to give back to the community.

"One Boston Day has turned the marathon into a movement our entire city has rallied around, spreading the message of kindness and goodwill across the world," Boston Mayor Marty Walsh said in a statement. "April 15 will forever be a day that represents the resilience of the human spirit, and I hope everyone can mark this day in a way that showcases the very best of our city and its people."

One Boston Day will include a blood drive at City Hall Plaza on Friday from 10 a.m. to 4 p.m.; a sneaker drive to benefit the St. Francis House; a locks-and-socks drive to help support the Pine Street Inn; and an initiative called Operation Thank a Vet to honor the city's veterans.

There will also be several volunteer opportunities, including the MR8 Day of Service, which will assist in cleanup and beautification. A full list of activities and volunteer opportunities can be seen here.

Kevin Brown, of Brockton, Massachusetts, observes a moment of silence near the finish line of the Boston Marathon. Two pressure-cooker bombs killed three people and injured an estimated 264 others during the Boston Marathon on April 15, 2013. Tim Bradbury/Getty Images

Three people—29-year-old restaurant manager Krystle Campbell, 8-year-old third-grader Martin Richard and 23-year-old Boston University graduate student Lingzi Lu, from China—lost their lives when the two bombs detonated on April 15, 2013. More than 260 others were injured by the blasts.

Sean Collier, a 27-year-old MIT police officer, lost his life three days later, after being ambushed by the bombers, Tamerlan and Dzhokhar Tsarnaev, in Cambridge, Massachusetts. Dennis Simmonds, a 28-year-old Boston police officer, died nearly a year later from wounds suffered during a gun exchange with the terrorist brothers in Watertown, Massachusetts.

Patriots Day, a 2016 film by Boston native Mark Wahlberg, chronicled the bombing and its immediate aftermath during the tense manhunt for the two bombers. The 122nd Boston Marathon will take place on April 16, known as Patriot's Day and Marathon Monday.