I also try to photograph and document as many renovation and excavation sites as I can because there will usually be a piece of history buried there.
Such is the case of the work on the old Casey's site. I knew the history of that corner as having a business there since the early 1900s which sold gas.
Not until the last day of digging did I happen to come at the right time to see a footing that baffled the excavation crew they ran into while digging, but I knew right away why it was there.
I also noticed a single clay block from that footing so I grabbed it and will mark it with the historical information so people in the future will know it isn't just an old masonry block.