“Prom” at the Philadelphia Museum of Art

Cheltenham High School alum Mary Ellen Mark returned to her alma mater —and 12 other schools across the country—to capture the stunning images that make up Prom, on display thru Oct. 28 at the Philadelphia Museum of Art.

Benjamin Franklin Parkway at 26th Street, Philadelphia, (215) 763-8100, philamuseum.org.

Our Best of the Main Line Elimination Ballot is open through February 22!