i never knew the depth behind ceilings. i want to make awesome ceilings when i have my own apt. i will definitely have the grave one in one room, that's just sweet.
but check it:
oh and this came up in my search, but i just had to add this because, this if caused from a leak! that's fucking insane! (classified as: an undulating ceiling) (...and for those who aren't walking dictionaries or just a little fuzzy on definitions, undulating means smooth wave-like motion, obvi for this ceiling)
and all this talk of ceilings, i have to mention... "ceiling wax"- chairlift: an excellent song.