The design of many churches in London bare his stamp. I am more familiar with St James's, Piccadilly, as it was my parish when I lived for a year in London.
“I can hardly think it practicable to make a single room so capacious, with pews and galleries, as to hold 2,000 persons, and all to hear the service and see the preacher. I endeavoured to effect this in building the parish church of St James’s, Westminster [Piccadilly], which I presume is the most capacious, with those qualifications, that hath yet been built.”
Sir Christopher Wren