During the 20th century, it is obvious that different artists were stepping out of the boundaries that were set to them by the art world itself. Artists were desperately trying to find ways to change the way in which the world experienced art, the piece of the puzzle that contained the real meaning of art and aesthetics needed to be found. Artists such as Ana Mendieta, Mariele Lederman Ukele, and Allan Kaprow, are a perfect example of the type of artist that challenged western art. Their work pushed the boundaries of aspects such as the art object, the artistic subject, and the spectator of art. The artistic subject and spectator were placed inside the art object and became part of the art object itself, giving western art an expanded field. The violation of conventional groups of artistic creation and the breakdown of boundaries introduced by the renaissance, led artists to the development of ephemeral works of art. Ephemeral art has the characteristic of decaying, getting destroyed and lasting short periods of time. (Santi, Raphael, 1990) However, such characteristic raises questions about the durability and ownership of the art object, since it is not possible for the object to reside inside a gallery, and it can only be treasured on images. The example set to the art community by artists of the 20th century, opens the door to endless possibilities of expression, combine the material form of art objects with the importance of time and space, and at the same time address and challenge conventions of artistic production.