A new project has started after during for from in of on to Germany to build the world's first building where Christians, Jews and Muslims can pray. It is called the 'House of One'. The project's leaders hope it will open after during for from in of on to 2016. They are asking people to donate money to help build it. The project will cost €43.5 million to finish. The idea started after during for from in of on to 2009 after during for from in of on to archaeologists after during for from in of on to Berlin were digging and found the city's earliest church, called the Petrikirche. An architect called Wilfried Kuehn decided it would be a good idea to build a multi-religion building after during for from in of on to the same site. Mr Kuehn said: "We quickly agreed that something visionary and forward-looking should be built after during for from in of on to what is the founding site after during for from in of on to Berlin." The project's Jewish leader, Rabbi Tovia Ben-Chorin, said Berlin was the best place after during for from in of on to the building because after during for from in of on to what happened after during for from in of on to millions of Jews after during for from in of on to World War II. He said: "Berlin is the city after during for from in of on to wounds and miracles. It is the city in which the extermination of the Jews was planned. Now, the first house after during for from in of on to the world for three religions is to be built here." The Christian leader, Gregor Hohberg, agreed, saying: "Berlin is the city after during for from in of on to the peaceful fall of the Berlin Wall and the peaceful coexistence after during for from in of on to believers after during for from in of on to different faiths." Muslim leader, Imam Kadir Sanci, hoped the building would let people after during for from in of on to different religions understand each other better. He said: "We want our children to have a future after during for from in of on to which diversity is the norm."