One of the artworks at the latest exhibition at Tokyo's Museum of Contemporary Art raises a question that is important to any public building — the question of accessibility.

But, alas, Fernando Sánchez Castillo's "Architecture for the Horse" (2002) is not about making a public museum of contemporary art more appealing to Tokyo's masses. It is instead a comment on Francoist Spain, when university buildings, such as the School of Philosophy at the Autonomous University of Madrid, were designed to enable Spanish riot police to enter on horseback in order to quell student riots.

In this video installation work, the artist rides on horseback through the School of Philosophy, accompanied by the echoing clip clop of equine hooves.