Though officially a mainstream theater, the Alfil's repertoire dips so frequently into the avant-garde -- recent performances have included Star Trip (a surrealistic sendup of Star Trek) -- that it's fair to include it in this section. A popular venue for stand-up comics -- having in the past hosted the Internacional Teatro de Humor -- it also provides a regular program of satirical and humorous plays. The box office opens 1 hour before each performance. Check with theater for exact shows and times.