Is there a way to tell the difference between a CofE church and a Roman Catholic one?

Are there any physical or aesthetic differences in a church's name (saint dedication), architecture, signage etc that identify it at CofE or Roman Catholic from the outside? (After years of being deaf and blind in the wilderness, I am re-discovering my Anglican faith. I travel the length and breadth of the UK for work, and want to attend church on my travels but I would prefer to know if it is CofE or RC before hand)