In Germany they are called "bauwagen" or builders wagons and are used as trailers on construction sites. A bauwagen "trailer park" is called a wagenplatz. I like the shape of the roof on these. Below are some examples of this type of wagon.
Building your personal haunted maze for Halloween doesn't indicate you've got to plow your backyard for an area of corn or seek the services of a stone mason to construct your maze walls. Needless to say,