When I came across some info about the American Neon Sign Museum in Cincinnati a few years back, I knew I had to visit it. Cincinnati is only a couple of hours drive from my RetCom so it made a good weekend trip.
They had recently moved into a bigger facility shortly before I went, so even with GPS it took a while to find them. The trip was well worth it. They have an outstanding collection of this dying art form.
RJ's Mosaics 