What building was opened by Pope John Paul II?

Pope John Paul II opened the Vatican's Paul VI Audience Hall on October 7, 1971. This modern structure, designed by architect Pier Luigi Nervi, serves as a venue for papal audiences and various events. It is known for its distinctive wave-like roof and seating capacity of around 6,300 people. The hall symbolizes the openness of the Church to the world and the importance of dialogue and communication.