"Grey's Anatomy" is a true TV mainstay at this point. With 18 seasons and nearly 400 episodes and counting, there's a ton to remember about the show over the course of its many, many years on the air. We've followed these characters through countless new arrivals and devastating departures, gut-wrenching deaths, and, of course, some incredibly memorable musical moments. Though there are definitely a few things that we've let slip from our memories over the years, there are plenty moments from this series that are truly unforgettable.
Keeping up with the show for more than a decade and a half is no small feat. Have you been there every step of the way, or are you more of a newcomer to the "Grey's" universe? Are you a casual viewer, or can you still quote lines from over a decade ago? If you think you've got what it takes to master all the "Grey's" trivia, then you are definitely in the right place! From general trivia to season-by-season fun facts and iconic moments, we've rounded up some of the most fun and most memorable pieces of trivia from the entire history of "Grey's Anatomy" so far. Test yourself on your own, or compete with all your "Grey's"-loving friends to see who truly is the biggest superfan of all.