Boston is beginning work soon on a redesign of Back Bay's Boylston Street to include a one-way separated bike lane and bus lane. The city says the plan will make the area safer for cyclists and faster for bus riders, but critics are raising concerns about the impact the change may have on traffic and business.
This year marks 100 years since the historic race was lengthened to its full 26.2-mile stretch. Here's what to know about the big names in the race and how you can get the best spots to cheer on the runners.