The Williamsburg Bridge celebrated its 100th birthday yesterday, and Newsday reports that literally in-his-face demonstrators caused Mayor Bloomberg to leave the festivities early. (They were protesting a firehouse closing.) Newsday also has a slideshow of the activities, and you can see the Mayor in a sexy yellow sweater.

The New York Times on the Williamsburg Bridge's immigrant heritage. A thorough history of the bridge from NYC Roads.

This picture is from a year ago, when Gothamist went to celebrate a friend's birthday in Williamsburg. More about that night here at Bluejake.