Looks like one of the tourist attractions there to me? According to the Postcard, there's a Dinosaur Delights gift shop located inside the Apatosaurus behind a restaurant called the Wheel Inn.
This is the own town hall in the Finnish own, Kajaani. Apparently, many old buildings there were demolished and rebuilt during the 60's-70's but this one was retained! :)
Valley Falls is one of the state parks in West Virginia. Many people kayak there. According to the sender, the entire town went bankrupt in the 1890's, so you can't tell if anything was ever there!