There is an amazing video available of an amazing project mounted by the SSPX in these USA. They are building a huge and beautiful new church.
One of the things I find interesting about this video is the intelligent commentary on what it takes to plan and to build the sort of church they are projecting in the place where they want to build it. I’ve thought quite a bit about these same issues.
Each group in every age of the Church’s life has built churches which reflect their faith, which communicate an answer to the question: “Who is the Church?”
Yes, today it is still possible to build amazing churches worthy of the name. They don’t all have to look like municipal airport terminals.
I would also like to recommend a book by Fr. James W. Jackson, FSSP, which begins with a view of church architecture based on the tenets of St. Charles Borromeo.