Since Halloween falls on Monday, this weekend is packed with spooktacular activities. Here’s a roundup of the top 5 events to check out this Halloween weekend in Indianapolis… Science Spooktacular at Indiana Historical Society October 29, at the Indiana Historical Society Discover the science and history behind potions, brews and goos. They’re turning the History Center into a mad-scientist laboratory! Throw on your best costume and trick-or-treat through the Indiana Experience. Dissect brains, make your own creepy concoction, brew your own ghosts, explore the whys of glow-in-the-dark with slime and learn what’s behind all those monster stories. Indiana Historical Society Science Spooktacular Boo ‘n Brew at Clay Terrace October 29, at Clay Terrace The adults can enjoy beer in our beer garden, and the kids can enjoy the annual Malloween – the mall-wide, safe trick-or-treating event. Other fun activities will include live music, silly safari animal shows, face painting, balloon artists, hayrides and more! Thrill The World Indianapolis 2016 Oct. 29, at the Marion County Fairgrounds Thrill the World is bringing the extravaganza to the Indianapolis area. Hosted by, the Wild Heart Association, the global event will feature hundreds of dancers along with thousands of others throughout the world dancing together at the same time to Michael Jackson’s THRILLER . World record attempt 6pm sharp! Indiana State Police Museum Trunk or Treat Oct. 29, at the Indiana State Police Museum Come Trunk or Treat with the Indiana State Police and other agencies from around Marion County at the Indiana State Police Museum. This is a free event for the whole family, with music, games, prizes, activities, and of course candy! They'll be having carnival games, a DJ, and troopers and local law enforcement handing out candy. Indiana State Police Museum Trunk or Treat Mass Ave Monster Mash October 30, on Mass Ave Shops on Mass Ave in downtown Indy open their doors to trick or treaters and typically feature fun activities at each stop.