The things one accidentally discovers about one's hometown sometimes... Apparently Thor's hammer is just sitting around in a Cambridge parking lot, waiting to be picked up! I had no idea (in spite of my love of large roadside attractions)!
This giant hammer is set back from the road a bit in a place that's somewhat out-of-the-way, so I guess I can see how it could be missed. And I don't know anything about the business, so it's also possible that they (or Thor) have only put the hammer there recently. Regardless, it was a surprise when we pulled off the road for a minute and found it standing there!