Last Chance / Ends This Weekend

Museum

“Microbes: Invisible Invaders . . . Amazing Allies,” an interactive exploration of the world of bacteria, viruses, fungi and germs, closes Friday at the Natural History Museum of Los Angeles County, 900 Exposition Blvd. Daily, 10 a.m.-5 p.m. Adults, $8; senior citizens and students, $5.50; children 5-12, $2. (213) 763-3466. Web site: https://www.nhm.org

Festival

The African Marketplace & Cultural Faire, with more than 350 vendors, six stages of continuous entertainment and numerous attractions, closes Labor Day at Rancho Cienega Park, 5001 Rodeo Road. Daily, noon-6 p.m. Adults, $3; seniors, $1.50; children under 10, free. (323) 732-1164 or (213) 237-1540.

Theater

An Enemy of the People, the Royal National Theatre’s new version of Henrik Ibsen’s classic about a doctor’s struggle to expose a local pollution scandal, closes Sunday at the Ahmanson Theatre, 135 N. Grand Ave. Today-Saturday, 8 p.m.; Today, Saturday-Sunday, 2 p.m. $15-$52.50. (213) 628-2772.