I went to Ostrog Monastery yesterday. It was a pretty damn cool place. There is an upper and lower monestary. The lower monestary is pretty basic, until you actually see it. Even the pillars to it were layered with mosaics.
Here it is from the outside.
But it was the inside of this little church that was amazing. It was covered in paintings that were so vibrant. It was amazing. A big picture and detail below.