Wow factor

The Millyard in Amesbury is hopping every weekend through August with the free PowWow! Summer Series, offering music on Friday nights from 6:30 to 8:30, movies on Saturdays at 8:30 p.m. and fitness classes on Sunday mornings at 9.

This weekend features classic ’60s and ’70s tunes with Ditto; a screening of “Peter Rabbit”; and a workout with Boston Sports Club.

There will also be food trucks on hand for most events and occasional children’s activities on Sunday mornings, including bubbles on July 14.

For a complete schedule, visit www.facebook.com/amesburychamberofcommerce.

In focus

New U.S. citizens are spotlighted in an exhibit opening Monday at the Merrimac Public Library on Route 110.

“The Bay State: A Multicultural Landscape — Photographs of New Americans” features a portion of photographer Mark Chester’s collection of more than 400 portraits of Massachusetts residents who represent nearly all of the 196 countries and territories in the world.

The exhibit runs through Sept. 14 at the library, which is open Mondays and Wednesdays from 10 a.m. to 5 p.m., Tuesdays and Thursdays from 10 a.m. to 7 p.m., and Fridays from 10 a.m. to 2 p.m.

Back to the roots

A diverse lineup of musicians will take the waterfront stage for the fourth annual Americana Rhythm & Roots Festival this Saturday.

The free concert, from 1:45 to 7 p.m., will feature headlining duo The War and Treaty, preceded by dancers from the New Hampshire Academy of Performing Arts, Quentin Callewaert, Walk That Walk, Sarah Borges and the Broken Singles, and The Gibson Brothers.

Theater in the Open will be on hand to entertain children and paint faces. There will also be food trucks and a beer and wine garden, with a portion of sales benefiting the Newburyport Parks Conservancy.