Did you know there is a Darth Vader gargoyle on the National Cathedral??? YES, it's true. Back in the 80s, the Cathedral held a children's art contest (bonus points) and good ole Darth was the design chosen. You can find it on the northwest tower (click the link to find out exactly where......you need binoculars).
We went to the Cathedral last Christmas and I am insanely disappointed I did not know this piece of trivia. We'll look for it next time.