Simply put, I should like to see whether there is any closed question that has something in it meriting a reopen vote. How do I find the list of closed questions here?
Use the search term
closed:yes (or as Dan Bron suggests,
The Search page itself contains some tips when you click the 'Advanced Search Tips' link on the right:
You can use it e.g. to exclude questions which are closed as duplicates.
I am pasting Dan Bron's very helpful comment as an answer here because a comment can disappear anytime:
Go to the search bar. Type closed:1. Pick your sort (eg by votes, by newest). Voila