Dance under the stars to live music 6-9 p.m. Fridays this month and next at the Bethesda Metro Center. Tomorrow, swing and boogie-woogie with the Daryl Davis Band; July 16, swing and jump blues with Swing Shift. Old Georgetown Road and Wisconsin Avenue, Bethesda. Free. 301-652-4988.
World War II Intrigue
The play "Copenhagen" is based on German physicist Werner Heisenberg's trip to Copenhagen in 1941 to see his Danish counterpart Niels Bohr. The production examines why Heisenberg went to Copenhagen and what he planned to say to his friend. The physicists, who had collaborated on the development of the quantum theory, were then on opposite sides in World War II. Olney Theatre Center, 2001 Olney-Sandy Spring Rd., Olney. Runs through Aug. 8. Call for prices. 301-924-3400 or www.olneytheatre.org.
"Merlin and the Cave of Dreams" is about a young boy named Arthur who embarks on a journey of self-discovery to the Otherworld after learning that the people he thought were his birth parents and brother are not. Arthur, accompanied by the wizard Merlin, gets glimpses of the future and his greatness to come. 10:30 a.m. Monday-Friday, 3:30 p.m. Saturday, 12:30 and 3:30 p.m. Sunday. Imagination Stage, 4908 Auburn Ave., Bethesda. Balcony seating, $7.50; groups of 10 or more, $9; general admission, $12. 301-280-1660 or www.imaginationstage.org.