Glen Curtis museum. Very interesting place and not to be missed, if your in the area. While airplane stuff is the main attraction there are also many other interesting things on display. Cars (Buicks if I remember) and a collection of dolls (porcelain and bisque) hidden in a corner. Been there dozens of times and even got to go through the old museum (and original workshop) downtown once.
Another location, I found VERY interesting was the Corning Museum of Glass in Corning which is only 25 miles from Watkins Glen. A first class museum by any standards, some of the items on display are unbelievable.
Still not riding, this is the longest I've been without a motorcycle ride since I was 18.