Rest assured, the ceilings in the cute German house we are renting are standard/boring white popcorn (no photo). But ceilings from days of yore are a sight to behold! This is a café in Vienna- really!!! The one where I had a lemon tart.
Church on Spilled Blood (please note, these are ALL mosaics, made of bazillions of tiny chips of stone):
Dublin, Ireland- the “Riverdance” theater: