How lovely that you were able to go to the Cape when you were last in the US. Did you see any of Boston as well or make it to the vineyard or Nantucket? All lovely spots.
Yes, I've always loved my MIL chicken house, I'd love such a one, but mine is tiny and poky and serviceable at best.
We explored some of historic Boston and I liked it a lot. We also went to Providence and Newport which were nice.