All 125 acres of the Detroit Zoo will be open until dark for this annual "merry-not-scary" Halloween celebration, which features strolling entertainment, Halloween face painting, photo opportunities, trick-or-treating stations and more. This year they're adding themed weekends. Oct. 8-9 is Wildlife and Wild Places, Oct. 15-16 is Witches, Warlocks and Werewolves and Oct. 21-23 is Heroes and Villains.

Event cost: $17-$23/general admission, free/under 2, $8/parking (including for members)

Event times: 2-6 p.m., last entry 5 p.m. Oct. 8-9, 15-16 and 21-23