Last Chance: Ends This Weekend

* Pop/Rock. Following stops at the Greek Theatre and the Coors Amphitheatre in San Diego, veteran rocker Neil Young, right, wraps up his Southern California tour at 6:30 tonight at the Santa Barbara Bowl, 1122 N. Milpas St., Santa Barbara. Local hero Beck opens the show. $48.50 to $88.50. (805) 583-8700 or (805) 962-7411.

* Theater. “A Question of Mercy,” David Rabe’s play based on an article by Richard Selzer about a doctor who is asked to assist in the suicide of an AIDS patient, closes Sunday at the Pacific Resident Theatre, 705 1/2 Venice Blvd., Venice. Today through Saturday, 8 p.m.; Sunday, 3 and 7 p.m. $20 to $22. (310) 822-8392.

* Theater. “Harold and Maude,” Colin Higgins’ adaptation of his 1971 cult film about a melancholy young man and an 80-year-old free spirit, closes Saturday at the Theatricum Botanicum, 1419 N. Topanga Canyon Blvd., Topanga. 4 p.m. $13 to $20. (310) 455-3723.

* Museums. “Mathematica,” closing Sunday at the Art Center College of Design’s Alyce de Roulet Williamson Gallery, is a re-creation of one of the best-known exhibition designs by husband-and-wife team Charles and Ray Eames. It includes a series of displays on celestial mechanics, the Mobius strip, probability, topology, minimal surfaces, projective geometry and multiplication. 1700 Lida St., Pasadena. Today, noon to 9 p.m.; Friday through Sunday, noon to 5 p.m. Free. (626) 396-2244.

* Museums. The 1974 “Rumble in the Jungle” heavyweight championship bout in Kinshasa, Zaire, between Muhammad Ali and George Foreman is documented in the photography exhibition “Main Event: The Ali/Foreman Extravaganza Through the Lens of Howard L. Bingham,” closing Sunday at UCLA’s Fowler Museum of Cultural History, 405 Hilgard Ave., Westwood. Today, noon to 8 p.m.; Friday through Sunday, noon to 5 p.m. $5; seniors and students, $3; UCLA students, $1; 17 and under free. (310) 825-4361.