Saturday, October 20: Tonight, the Prospect Park Alliance holds its 20th anniversary gala around the iconic carousel. Tickets for the black tie affair aren’t cheap, but they benefit a good cause. Besides, you can more than make up for it at the silent auction.

Sunday, October 21: Last year, over 10,000 people participated in the American Cancer Society’s “Making Strides Against Breast Cancer” walk in Prospect Park, an event that raised $750,000. Join this year’s walk, which begins at the band shell and goes about 3.4 miles, and help them break last year’s record.

Tuesday, October 23: Tonight, Williamsburg’s Monkey Town, welcomes Damo Suzuki, formerly of 1970s German rock band Can, and his all-star band (featuring members of Gang Gang Dance and Psychic Ills). It’s a rare chance to catch an intimate show with this avant-garde rock legend.

Wednesday, October 24: They won’t wear matching outfits, but identical twins Paula Bernstein and Elyse Schein, who were separated at birth and raised in different households as part of a medical study, will read from their memoir, “Identical Strangers” tonight at the Park Slope Barnes and Noble.

Friday, October 26: Drop by the new location of the Brooklyn Frame Works Gallery to check out its current show, “Outer Space,” which features sci-fi paraphernalia, antique prints and plenty of intergalactic art. Follow up your visit with a bout of stargazing, and you’re in for a night that’s truly out of this world.