Nobody's mentioned KYAA Soquel, CA yet. Dominant here in the SF Bay Area, and probably vastly unknown anywhere else, even though, as Immaculate Heart Radio, they should be destructively overpowering more heathen stations.
WOAI has been heard here, back when "Three's Company" was a #1 TV show.
Here in South San Jose, KYAA ( 20KW ) comes in pretty good, but just last week I was able to null it just enough to pull in WOIA. Not bad for a station over 1440 miles away.