Urakami Cathedral - a replica of the cathedral, which was almost on this very spot before the tragic events of August 9, 1945. The explosion of the atomic bomb dropped on Nagasaki, there was a five hundred meters from the church. At the time of the disaster was held in the cathedral church, and all those present at its parishioners were killed. From the cathedral was a fragment of the wall, which was decided to keep as a reminder of the tragedy that occurred here. Other parts of the building are exhibited in the Museum of the atomic bomb and the new cathedral, which was opened only in 1980.

Another name for the church - the Cathedral of the Immaculate Conception of the Blessed Virgin Mary. Before the bombing, he was considered the largest Catholic cathedral in the south-east Asia. Today is the Cathedral of the Archdiocese of Nagasaki.

Residents of the area Urakami, which is now included in the city limits of Nagasaki, nearly all professed Catholicism. In the period from 1869 to 1873 years, Christians living in the Urakami, persecuted: 650 people were killed, others were out of town. In 1873 he moved back and started the construction of a Catholic church. The temple was built of red brick in the Romanesque style and was opened in 1925.

After the Second World War, the city authorities and the Urakami Catholic Christians long to find a solution acceptable to both sides about where to begin construction of a new church. Representatives of the Catholic community insisted that the new cathedral should be in the same place where the old and in memory of those who died from the persecution and persecution of believers. City officials believed that the ruins of the original building should be left as evidence of the terrible consequences of the atomic bombing and offered to the Cathedral a new location, a little away from the ruins of the old. The dispute lasted for almost two decades. Today, remnants of the old buildings are included in the Peace Park memorial complex.