An interesting video series is being produced by Fr. Robert Barron's Word On Fire ministry, which features Denis McNamara of Creative Minority Report discussing church architecture. See below for the first video in the series, discussing St. Peter's Basilica in the Vatican:

I was lucky enough to have been asked by my good friend Fr. Barron at Word on Fire to try to enrich his pilgrimage web site with some short video clips on some of the places he's been while making his really excellent Catholicism series. So he sent some folks from his crew to my office and the result is a series of ten short videos on great artistic and architectural landmarks of the Church. Number One: Saint Peter's Basilica in Rome. Enjoy!