Waltham is filled with photogenic sites, many of which you may not notice during your daily travels and chores. Waltham Patch, however, gallivanted about the city recently searching for such scene, but that was only half the fun. The other half — Patch readers guessing what the photo is.

Each day this week, Patch will run a photo with an adjoining clue asking readers to guess what it is or where it resides in the city, or both. Submit your guesses in the comment box below!

Even better — submit your photos to ryan.grannan-doll@patch.com and Patch may use it as a photo of the day. Make sure to include when and where and what the photo is. Have fun!

Today's photo is something related to the Waltham Fire Department, but what is it?