And stocks tend to trade between that floor and ceiling until they find a hole.

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Boston's own version of "Washington Crossing the Delaware, " by Thomas Sully, a subject that always seems to demand enormous canvases and wall space, had to be accommodated by cutting a hole in the ceiling.

WSJ: The Metropolitan Museum of Art | American Wing | The New World Reborn | By Ada Louise Huxtable

Art restorers working in Valencia's cathedral spotted the birds flying through a hole in what turned out to be a false ceiling and were intrigued.

BBC: NEWS | Europe | Pigeons find hidden Spain fresco