The Art Center, 344 S. Main St., continues its spring show and sale through June 4. "Wood & Metal" is accepting entries through June 5 and opens June 18. The featured artist will be Ellen Brooks of Philadelphia. Classes for children, youths and adults are available. Center hours are noon to 6 p.m. Wednesdays, Thursdays and Fridays and noon to 4 p.m. Saturdays. Admission is free. Call 724-283-6922 or visit www.theartcenterbutlerpa.org.

<B>Blue Heron Gallery</B>, 600 Main St., Volant, presents "Collections," a selection of photographs by Kathy Chridon through June 27. Regular gallery hours are 10 a.m. to 5 p.m. Wednesdays through Saturdays and noon to 5 p.m. Sundays, except holidays. Call 724-652-0752.

<B>Carnegie Museum of Art</B>, 4400 Forbes Ave., announces a "Design Competition: New Cottages at Fallingwater" June 12 to Aug. 22. On display will be design proposals from six architectural firms for green, energy-efficient cottages to be built in the vicinity of Fallingwater at Mill Run. Continuing are "Imagining Home: Selections from the Heinz Architectural Center" through May 30, "Caricature, Satire, and Comedy of Manners: Works on Paper from the 18th through 20th Centuries" through Aug. 15, "Gods, Love, and War: Tapestries and Prints from the Collection" through June 13. Regular hours are 10 a.m. to 5 p.m. Tuesdays through Saturdays, with additional hours until 8 p.m. Thursdays, and noon to 5 p.m. Sundays. Closed major holidays. Free admission is offered from 3:30 to 8 p.m. Tuesday for International Museum Day. Regular admission, which includes the Carnegie Museum of Natural History, is $15 for adults, $12 for senior citizens 65 and older, and $11 for students with ID and children age 3 to 18, and free for members and children younger than 3. Call 412-622-3131 or visit the website, www.cmoa.org.<B>Frick Art and Historical Center</B>, 7227 Reynolds St., Point Breeze, is showing "Small But Sublime: Intimate 19th Century American Landscapes" through Sept. 5. American artists spanning the Hudson River School to American Impressionism are represented in these small-scale paintings. Admission to the art museum is free; however there are charges for docent-led tours of Clayton, the former home of Henry Clay Frick. Hours are 10 a.m. to 5 p.m. Tuesdays through Sundays; closed Mondays and major holidays. Call 412-371-0600.<B>Society for Contemporary Crafts</B>, 2100 Smallman St., and <B>Pittsburgh Center for the Arts</B>, 6300 Fifth Ave., are hosting the 2010 Fiberart International, an exhibition of contemporary fiber art, through Aug. 22, as presented by the Fiberarts Guild of Pittsburgh. For more information, visit the website, www.fiberartinternational.org.