By the 19th century, much of the walls had crumbled away.

Yet another stone in the wall she had built between them crumbled away.

Our morale, which was so high just a month ago, is crumbling away.

At the very least, the shoulders would begin to crumble away.

At the end of time, when all the world's buildings have crumbled away, there it will be.

All the while he was riding me, I could see the ground crumbling away beneath his feet.

The floor crumbled away beneath me, and I was falling.

Roy had a hand over when a piece of rock crumbled away.

Just imagine, for a moment, how much of human evil will crumble away, with this one change!

Where his body struck the walls, they began to crumble and fall away.