The tower of Saint Andrews Catholic Church, built in 1927, is one of Pasadena's most-photographed landmarks. Ben has a very cool shot of it, which I hesitated to link to because I mentioned in the comments I thought it was part of the funeral home next door. Well, that was back in the days when I wasn't perfect.
Wikipedia's article about Saint Andrews says "The architect, Robert Montgomery, and the church's pastor, Msgr. McCarthy, both traveled to Italy studying early Byzantine architecture to find inspiration for the new church." They found inspiration in Saint Sabina's basilica in Rome, which was built in 432 A.D. A photo I'll show you tomorrow bears a good resemblance.