There were glassy walls which changed their look as one moved between them.

The tower is surrounded with glassy walls at its top.

A moment passed before he realized that the image was his own, reflected from the visual depths of a glassy wall.

Killeen saw now that the apparently glassy wall was in fact a projection, an image.

The waves were nicely peaked, organized in long, glassy walls of water.

A strong glassy wall stood where there should be nothing but bright air and white clouds.

The team dismounted before a glassy wall of complex machinery.

There was a moment of delay; then glassy walls shimmered into view around the group.

Within the glassy walls, boulders hung, an avalanche frozen in place.

The first obstacle was a wide pit, backed by a glassy wall.