The present invention relates to a collapsible/foldable structure that may include a top roof and a bottom platform. A pair of sidewalls may be provided each of which may be pivotally attached to the roof. The sidewalls may include at least two side section such as an upper and middle section. The sidewalls may also include a lower side section. The upper and middle sections may be pivotally attached to one another and the middle and lower side section may be pivotally attached to one another so that the upper and middle sidewall sections can be pivoted inwardly towards the bottom platform to provide a collapsed condition. The sidewalls may also each contain an outer and an inner surface thereof wherein the outer surface of the upper side wall and the outer surface of the adjacent middle side wall form an angle that is greater than 180 degrees when the structure is in an expanded or collapsed condition. In addition, the inner surface of the middle wall section may overlie the inner surface of the upper wall section in a collapsed condition.