They're also one of the few foods that can be found in any part of the country, big city or tiny.
That's because of the incessant demand that has helped sandwich shops of all sizes flourish everywhere.
There are several differentiating characteristics between the greatest and the rest.
Having said that, there are a number of sandwich shops that meet all the criteria.
Perhaps not everything they provide is of the highest quality or nutritional value.
However, these are stores that are truly unique among chain stores.
They're the unusual food available in most of the country, from tiny towns to big cities.