How Observant Are You in Chelmsford, MA?

What does a New Englander do on a 50 degree day in January? They get outside, go to a cemetery to take pictures with a new camera. In this case, the below cemetery is one you've all seen at least once on my blog, recognize it? The second photo, of the same cemetery, shows something quite interesting, especially if you have ancestors buried there and want to source it correctly. And the third photo was a total surprise, since I've been by it probably thousands of times. Why am I just noticing some of these things, well, it's due to a new iPad. Yesterday was my first time using the camera, and because of the large size of the photos it just about told me to really look at what I had taken...almost like looking at document. The first two answers are below.

I didn't enlarge because you wouldn't be able to see the right side (nice followers photos covered it.) The enlarged is below.

Cute little house on the common and, I never wondered what it was.

Middlesex Canal Toll House 1832

Oldest Canal Toll Houses in America. (Photo enlarged from above picture.)

This was totally new to me.

Notice the two signs? One says Forefathers Burial Grounds and the other is Forefathers Burying Ground.

The first photo was taken where I took my cover picture for Life From the Roots in the summer.