Keeping Boston in Our Hearts

In the wake of the horrible tragedy that unfolded at yesterday's Boston Marathon, we'd like to express our deepest sympathies to the victims and everyone who was affected. We're keeping the great city of Boston in our hearts and thoughts, and we stand with you during this difficult time.

To honor those who lost their lives, those who were injured and those who are mourning for loved ones, we have compiled the following photo collage depicting just a few of the many instances of heroism, support and unity that were on display in Boston and around the world during and after the attacks.

Stay strong, Boston.