“Vanya and Sonia and Masha and Spike” presented by Portland Center Stage. Winner of the Tony Award for Best Play, Vanya and his sister Sonia live in a house paid for by their movie-star sister Masha. But when Masha returns with her boy-toy Spike and plans to sell the house, everything is shaken. Through Feb. 8; 7:30 p.m. Tuesday-Sunday; 2 p.m. Saturday-Sunday, noon Thursday. Gerding Theater at the Armory, 128 N.W. 11th Ave., Portland; $49 to $69; $25 for students. 503-445-3700 or www.pcs.org
Out & about
Rock ‘N’ Roll Classic, 10 a.m. start Jan. 23; 8 a.m. start Jan. 24-25. The seventh annual gymnastics meet is one of the largest in the state, as 750 gymnasts compete in a variety of routines. Clark County Event Center at the Fairgrounds, 17402 N.E. Delfel Road, Ridgefield; $10, $7 for children. $6 for parking. www.rocknrollclassicmeet.com
International Cat Show, 3 to 10 p.m. Jan. 23; 9 a.m. to 6 p.m. Jan. 24-25. See 250 cat breeds at the 10th annual show, which also serves as a food drive for the Oregon Food Bank. There will also be several rescue groups at the show, with kittens and cats available for adoption. Holiday Inn at the Portland Airport, 8439 N.E. Columbia Blvd., Portland; $6 with two cans of food, $8 without, free for ages 12 and younger. www.tncc.org
Fairs & festivals
ChocolateFest, 4 to 9 p.m. Jan. 23; 11 a.m. to 6 p.m. Jan. 24; 11 a.m. to 5 p.m. Jan. 25. The 10th annual festival has chocolates from more than 60 vendors, along with chocolate and cooking demonstrations and wine tastings. Proceeds benefit the World Forestry Center. Limited to ages 21 and older on Friday. Oregon Convention Center, 777 N.E. Martin Luther King Jr. Blvd., Portland; $15, $13 for seniors, $8 for students, $7 for ages 5 to 17. 800-992-8499 or www.chocolatefest.org