Blindfolded Greeks

-- People across the world have started playing the so-called "lost sport" of the Greek Olympics, known as "the Labyrinth." It's a game, created by video game designer Jane McGonigal, in which a blindfolded player tries to make his or her way through a human labyrinth. The sport, which is part of a viral marketing campaign for McDonald's and the 2008 Olympics, has achieved some popularity on YouTube. The Boston team practices this morning. Parkman Bandstand, Boston Common, 11:30am. Free.

Strip Training

-- The Boston Babydolls present a beginner's course in burlesque dancing, which teaches everything from "the ten essential moves of burlesque" to pasties basics. Open only to women. Rock City Body, 167 Brighton Ave., Allson, 3:00pm. $49.

Heritage

-- The Villa Victoria community's Festival Betances, which bills itself as the oldest Latino arts festival in New England, closes today with a celebration of Puerto Rico. Expect Latin American food, a greased pole contest, and music from local salsa, bomba, and reggaeton acts. Plaza Betances, 100 W. Dedham St., South End, Noon-6:30pm. Free.

Three-Legged Races

-- Our old pals Socializing for Justice bring it back to elementary school with a Field Day. Scheduled games include relay races, water balloon tosses, tugs-o-war, and sprinkler park frolicking. Boylston and Lamartine Sts. (across from Stony Brook MBTA station), Southwest Corridor Park, 1:00pm-3:00pm. Free.

Rock

-- Imaad Wasif, of the Yeah Yeah Yeahs, plays intricate and mystical psychedelic rock. Milky Way, 403 Centre St., Jamaica Plain, 9:00pm. Free.

Allegories

-- Joseph Losey, who suffered the Hollywood blacklist, was the first stage director of Bertolt Brecht's 1947 play Galileo, a portrayal of the scientist's persecution by the Catholic Church. Brecht's Galileo is craven and narcissistic. Losey's 1975 film adaptation feels like it was shot on a theatre stage. Topol's portrayal of Galileo lacks nuance, but provides a satisfying -- and Brechtian -- distancing effect. Screening with Time Without Pity (1957). Harvard Film Archive, Carpenter Center, 24 Quincy St., Cambridge, 7:00pm. $8/$6.

Image of Imaad Wasif from his Myspace.