I think that the Fair Haven (Rutland County) post office is the most unusual design that I have photographed so far. Definitely a modern design.
Coventry (Orleans County) is a small post office located in a private home. But I love the gingerbread design on the eaves and on the side porches. Such an inviting post office.
When I return home, I print the picture on envelopes and send to the post office for copies of their postmark. Currently, I have about 90 such envelopes and hope to do at least another 90 this summer while it's easy to get around the State of Vermont.