A tiny little urban cache hiding out near one of the greatest inventions of 19th century.
While placing this cache, I was thankful that my children knew what it was, but they were puzzled as to why they would put one just out in the open and why in a box. The reply by the youngest was that superheroes need change rooms in all sorts of locations. Needles to say, they had no idea how to operate it nor the necessary currency in pocket. The daddy had a good laugh as we discovered that such box is aluminum thus not magnetic so your searching may have to go beyond the confines of the superhero changeroom.