Abyss by Doris Salcedo is a noteworthy engineering firm has extended the brick ceiling dating back to the end of the eighteenth century, with others specially made and which brought them close to the floor, creating an oppressive environment. Doris Salcedo creates sculptures and installations whose sober appearance belies complex themes. His works commonly have themes and subjects related to the historical incidence of mass violence, trauma, racism and colonialism; he believes that his art represents a social conscience and sees his role as that of witness. She has been known to work with architects and engineers to make works that are set directly and almost imperceptibly in their environment