The words of the prophet are no longer written on the subway walls.

Other commonly encountered regular-shaped surfaces are subway walls and pillars.

"Instead of putting up condom posters on subway walls, we need to use teams of ex-addicts to attack drug addiction in the streets," he said.

Be warned: much of the language, even as translated by English subtitles, is of an explicit kind they don't even write on subway walls.

The new commish will become the focus of every knowing smirk, like a name written on subway walls.

He used a strobe light that bounced off the subway walls, so even the riders who know they're being photographed look startled.

This is what I saw written on a subway wall, among all the political satire.

The moment they broke through the subway wall, their earth tunnel would be almost surely discovered.

"The state of this city," she said, "is written on the subway walls and tenement halls, and everybody knows it."

Photographic images, it seems, are all around us, on subway walls, construction sites, magazine kiosks and the sides of buses.