Richard Serra’s “Bent Pipe Roll,” from 1968, is a free-standing lead pipe that lies along the floor, angles upward through a cylindrical lead roll, then leans against the wall. It rests serenely, gracefully, alone in a gallery at the Aldrich Contemporary Art Museum in Ridgefield. 

Nearby, Kate Gilmore’s new, site-specific installation, “A Roll in the Way,” consists of more than 500 painted logs stacked upright on a raised white platform.