There are only a handful of locations on earth where “hell” is part of a place name. Nine, according to the National Geographic Atlas of the World. This is a story of another.
Exposition postcards are quite popular among many collectors. Remember, the first government postals were issued at the Columbian Expo in 1893. Some events are rare, but there is an ample supply of most events and those that are common are priced reasonably. Expos and World Fairs are great topics when you’re ready to start a new collection!