The large glass structure in the center contains the star attraction: a 360-degree masterpiece by Mexican muralist David Alfaro Siqueiros, which originally covered the walls, floor, and ceiling of a basement room in a client's home. When the house was demolished in the early 1990s, the mural was carefully removed in pieces, only to languish in a shipping container for 17 years. Thankfully, Siqueiros's innovative use of industrial paint meant that damage was minimal. Prompted by the campaigns of committed art activists, President Cristina Fernández intervened and the mural has now been fully restored and reassembled here. After donning protective shoes, you cross a small passageway into the work, which represents an underwater scene, against which the feet and faces of swimmers seem to press. The only male figure (swimming upwards on the wall opposite the entrance) is said to represent the artist.