Guardian Angel Cathedral is unique not only for its magnificent windows, mosaics, mural and architectural design, but also in its origin and history. Its beginnings go back to 1958 when the priests of St. Viator's Parish began the celebration of a 4:30 AM. Sunday Mass at various hotels on "The Strip" to accommodate hotel/casino workers and visitors. The present church became a reality in 1963 as "Guardian Angel Shrine". When the Diocese of Reno became the Diocese of Reno Las Vegas in 1977, "The Shrine" was designated as Co-Cathedral of the Catholic Church in Nevada. In 1995 the Diocese of Las Vegas was formed, with Guardian Angel Cathedral as the Cathedral of the Roman Catholic Church in Las Vegas, Nevada.
There are countless numbers of regular members and tourists who attend Mass in this sacred space on weekdays and weekends throughout the year. The Cathedral is located on the north end of the Las Vegas strip near Treasure Island and next to Wynn's Casino.