Marathon Exhibit Opens in Boston

Mementos left in Copley Square and on Boylston Street after the Boston Marathon bombings have been collected into an exhibit at the Boston Public Library. The exhibit opened April 7, almost a year after the blasts near the race's finish line.

A ribbon bearing the colors of the Boston Marathon fronts a collection of shoes that were left at makeshift memorials in the city.

A "message tree" features notes in support of the victims and of the city.

Messages of love and support were manifested in numerous ways after the bombings. Curators sought to extend that, by allowing visitors to leave their own notes.

Mary Ellen Cahill, in her 2014 Boston Marathon jacket, scans some of the shoes left at Copley Square.

A visitort watches a slideshow displaying more of the messages left at the memorial.

Curator Rainey Tisdale talks about some of the artifacts that are displayed at the Boston Public Library.

A closer look at some running shoes that were left at the memorial. Many have short messages written on them, such as "Boston Strong" and the date of the 2013 marathon.

A visitor takes in some of the objects in the exhibit.

Crosses for Krystle Campbell, Lu Lingzi, and Martin Richard, who were all killed in the blasts, are on display.

A cross for M.I.T. police officer Sean Collier, who was killed by one of the alleged bombers a few days after the marathon, also is included.

One of the many posters left in the wake of the bombings. 

'Dear Boston: Messages from the Marathon Memorialwill be on display at the McKim Exhibition Hall at Boston Public Library in Copley Square through May 11.