There is an interesting little chunk of US territory, peeking out from under the "R" in PARALLEL.
It is surrounded by US water on three sides and CANADA soil on the north.
If you are driving there you must enter into Canada for a few miles until you can turn south to it.
There is a little more remote chunk here northern Minnesota
https://www.google.com/maps/@49.2474986,-94.9614117,65492m/data=!3m1!1e3