The World's 10 Best Cathedrals, According To National Geographic (PHOTOS)

If you haven't caught on yet, we're totally digging on National Geographic's new book "The 10 Best Of Everything."

So far we've taken a look at the world's best islands, 10 of the best UNESCO world heritage sites (see more here), 10 of America's best national parks, and London's best pubs -- in time for the Olympics, of course.

This time we're getting historical again with a look at some of the world's best cathedrals. Check out NatGeo's list in the slideshow below, then let us know which churches you think are missing in the comments below.

10 Best Cathedrals