Today's mural, Polar Bear Effigy by Diane Fiedler, is a life-sized watercolor painting of a polar bear on an ice floe in Greenland. Shrinking sea ice threatens the future of this iconic endangered species. Photo by Tom Cochrane, painting by Diane Fiedler, and produced by Milbry Polk with the support of Adventure Canada. Watch a film of the installation here.

Today's mural by Karen M. Krieger blends her mixed-media ink painting, When Celestial Worlds Collide, with a photograph of birds migrating over the Outer Cape.

Today’s mural, Tempest by Michelle Brown, is both a narrative and landscape-based oil painting on wood. This piece is more imaginary, but inspired by the plein air paintings she makes in Acadia National Park.

Today’s mural, All Together Now by Arlene Hammel, invites you into the serene world of a koi pond – a peaceful place of fluid motion and endless fascination.

Today's mural, Santos Hands Multiple by Amy Heller, shows images digitally repeated, mirrored, and inverted in a checkerboard format. The layout is similar to vintage letterpress type trays that are used for displaying objects. They harken back to cabinets of curiosities from the 16th century. Alternating negative images look like x-rays, giving a haunting quality that suggests a mysterious past.

Today's mural features a photograph by Nancy Szostak Wright of a great-horned owl from Plymouth, Mass. Many raptors die unnecessarily after eating poisoned mice and rats.

Today's mural, Spring Glow by Ariel Kessler, highlights the artist's range in media – including painting, collage, printmaking, and ceramics. Her work uses lively, colorful imagery to create a whimsical world. Combining traditional approaches with an emphasis on color and texture, she explores themes of memory, home, nature, and remoteness.

Today's mural by Sydney Chung questions the viability of a city without people. It would become an apocalyptic wasteland or a place where nature takes back what it's lost. Chung sees a city's infrastructure as a shell – no sign of conflict or cosmic intervention, but a dark, lonely place without its defining center and purpose.

Today's mural, Homage to Redwork by Nancy Crasco, is an art quilt inspired by the redwork embroidery style of the early 20th century. The nine linoleum prints depict wildflowers currently on the endangered or threatened list in Massachusetts.

Today's mural features artwork by Bridey McGlynn. She works in collaboration with her body to create open abstract imagery. Referencing the contours and marks of her form, she repeatedly layers drawings of herself, building and destroying the image into something unrecognizable.