The other winner was a design by Christine Jackob-Marks. Her concept consisted of 100×100 meters large concrete plate, seven meters thick. It would be tilted, rising up to eleven meters and walkable on special paths. The names of the Jewish victims of the Holocaust would be engraved into the concrete, with spaces left empty for those victims whose names remain unknown. Large pieces of debris from Masada, a mountaintop-fortress in Israel, whose Jewish inhabitants killed themselves to avoid being captured or killed by the Roman soldiers rushing in, would be spread over the concrete plate. Other ideas involved a memorial not only to the Jews but to all the victims of Nazism. Federal Chancellor Helmut Kohl, who had taken a close personal interest in the project, expressed his dissatisfaction with the recommendations of the jury to implement the work of the Jackob-Marks team. A new, more limited competition was launched in 1996 with 25 architects and sculptors invited to submit proposals. Eisenman design The date for the inauguration was scrapped and in 1997 the first of three public discussions on the monument was held. The second competition in November 1997 produced four finalists, including a collaboration between architect Peter Eisenman and artist Richard Serra whose plan later emerged as the winner. Their design originally envisaged a huge labyrinth of 4,000 stone pillars of varying heights scattered over . Serra, however, quit the design team soon after, citing personal and professional reasons that "had nothing to do with the merits of the project." Kohl still insisted on numerous changes, but Eisenman soon indicated he could accommodate them. Among other changes, the initial Eisenman-Serra project was soon scaled down to a monument of some 2,000 pillars. By 1999, as other empty stretches of land nearby were filled with new buildings, the vacant lot began to resemble a hole in the city's centre. In a breakthrough mediated by W. Michael Blumenthal and negotiated between Eisenman and Michael Naumann in January 1999, the essence of the huge field of stone pillarsto which the incoming German government led by Gerhard Schröder had earlier objectedwas preserved. The number of pillars was reduced from about 2,800 to somewhere between 1,800 and 2,100, and a building to be called The House of Remembranceconsisting of an atrium and three sandstone blockswas to be added. This buildingan archive, information centre and exhibition spacewas to be flanked by a thick, Wall