When the viewer walks around the sphere, the visual relationship between the lines changes, creating a sense of motion.

But as the viewer walked around his works, they unfolded in a kind of abstract narrative of color and shape.

Last year's show had an immediacy, a freshness, as if the viewer were walking through a work in progress.

They would sway ever so slightly when viewers walked through the installation.

As viewers walk the bases, they stroll through baseball history.

In this work, however, the claw's clenching action is set off by motion sensors as the viewer walks past.

Entering this labyrinth, every viewer walks from one stage to another and builds his or her private story out of ready elements.

The garden is discovered as the viewer walks along the path.

But viewers now walk into theaters already so crammed with information about the film that those establishing scenes almost take care of themselves.

This prevents the image from breaking up as a viewer walks around the screen, the designers say.