memorial's construction focused on the possible effects of weathering, fading, and graffiti. Already by 2007, the memorial was said to be in urgent need of repair after hairline cracks were found in some 400 of its concrete slabs. Suggestions that the material used was mediocre have been repeatedly dismissed by Peter Eisenman. In 2012, German authorities started reinforcing hundreds of concrete blocks with steel collars concealed within the stelae after a study revealed they were at risk of crumbling under their own mass. Information Bureau The information centre is located at the site's eastern edge, beneath the field of stelae. The visitor display begins with a timeline that lays out the history of the Final Solution, from when the National Socialists took power in 1933 through the murder of more than a million Soviet Jews in 1941. The rest of the exhibition is divided into four rooms dedicated to personal aspects of the tragedy, e.g. the individual families or the letters thrown from the trains that transported them to the death camps. The Room of Families focuses on the fates of 15 specific Jewish families. In the Room of Names, names of all known Jewish Holocaust victims obtained from the Yad Vashem memorial in Israel are read out loud. Each chamber contains visual reminders of the stelae above: rectangular benches, horizontal floor markers and vertical illuminations. Critics have questioned the placement of the centre. It is discreetly placed on the eastern edge of the monument. Architecturally, the information centre's most prominent feature lies in its coffered concrete ceilings. The undulating surfaces mirror the pattern of the pillars and pathways overhead, causing the visitor to feel like they have entered a collection of graves. "Aesthetically, the Information Center runs against every intention of the open memorial. The aboveground pavilion of the subterranean documentation area mars the steady measure of the order of rectangles. Admittedly, all objections against this pedagogical extra fall silent when one has descended the stairs to the Information Center and entered the first four rooms". The visitors centre contains and displays some of the most important moments and memories of the Holocaust, through carefully chosen examples in a concise and provocative display. The entrances cut through the network of paths defined by the stelae, and the exhibit area gives the memorial that which by its very conception it should not have: a defined attraction. "The exhibitions are literal,