For a one tank trip, I have a suggestion....Warther's Museum in Dover, Ohio.
Moony Warther was a wood carver of trains, etc & his carvings look MACHINED! For those of you who appreciate a skilled craftsman, this is a MUST SEE. The man had a grade school education but was truly a genius. If you have been there, you know what I mean.
As a side benefit, their gift shop sells their cutlery, which will stack up against others much more expensive. I own 3 different sizes of Warther's filet knives & they simply can't be beat. They make great gifts & are very affordable.
Mike