10:30am-11pm, $20.50, Museum of Sex, 233 Fifth Ave, museumofsex.com. Thru Sep 8. Mariette Pathy Allen has documented the spectrum of gender expression for more than four decades. This exhibition focuses on Allen’s archive dating from the late 1970s through the early 2000s—a treasure trove consisting of photographs, interview transcripts, personal correspondence, and related materials.