Using a large natural cave, this monastery has four floors, but only one wall. The Nazis blew it up (and burned the town to the ground). It was rebuilt after the war, but not before it was gutted by theives.
In other words, don't be a jerk. Other signs said men had to wear pants, and women had to be in skirts. Most men were in shorts (it was over 90f/30c) and that seemed fine. Women, however, were asked to put on shawls (available for free at the entrance) and either fashion a skirt or shawl depending on what they were wearing.
What was interesting, once you noticed it, is there isn't anything big. Sure the buildings are, but they're made up of smaller pieces. Nothing so large that it isn't easily carried or able to be put in the motorized bucket that you'll see in a few slides.
There were once 24 monasteries in Meteora. The five intervening centuries saw most of them lost to war, time, neglect, and so on. Many of the ruins are still visible if you know (or are told) where to look.
Pretty rare you get to see this view, of the path down to the stairs that bring you up to the monastery. Again I'll give them credit -- you can't see any of this from the best photo spots (except for one section of stairs).
I was sad to leave Meteora. So often in life things don't live up to the expectations you've built for them. That was not the case here. If anything, Meteora was cooler than I ever imagined. Definitely check it out, if you can.