Antoinette's Haunted History Tours: Trolley tours led by a psychic guide include the Bare Bones tour, Eating with the Entities and the Witching Hour tour on various days and times. Tours are on a first-come, first-served basis. Through Nov. 20, 7 p.m., $32-$52, 618-462-4009, www.hauntedalton.com. Piasa Masonic Temple, 300 State, Alton.
Boo at the Zoo: Non-scary, kid-friendly Halloween fun, including Frankie's Maze, skits and sing-alongs at the Children's Zoo amphitheater, Headless Horseman Graveyard, Mummy Mayhem, Pirates Cove and Spider alley; costumes are encouraged, and all kids go home with a treat bag. Thur.-Sat., 5-8 p.m. Continues through Oct. 30, free. Saint Louis Zoo, Forest Park, St. Louis, 314-781-0900, www.stlzoo.org.
Buffalo Bob's Halloween Jam: Open jam session hosted by Buffalo Bob. Sun., Oct. 31, 8 p.m., free. Backstreet Jazz & Blues, 610 Westport Plaza, St. Louis, 314-878-5800.
The Bull's Halloween Party: The Bull (93.7-FM) broadcasts live from Wild Country beginning at 10 p.m.; costume contest with cash prizes and free admittance before 8 p.m. Sat., Oct. 30, 7 p.m.-3 a.m., $5 to $6. Wild Country, 17 Gateway, Collinsville, 618-346-6775.
Charity Halloween Ball: Door proceeds from this ball and costume contest (with a $1000 prize!) benefit St. Louis Children's Hospital. Gow and Alex spin in the main room, and Charlie Chan and Smitty break it down in the front of the house. Extra hour bonus because of the end of daylight saving time! Sat., Oct. 30. Velvet, 1301 Washington, St. Louis, 314-241-8178, www.velvetvibes.com.
Chili Cookout and Halloween Walk: Sample the best efforts of the chili chefs ($10 entry fee to compete) while escorting your kids as they trick or treat at local businesses. Sat., Oct. 30, 10 a.m.-3 p.m., call 618-978-2232 for info. Downtown Collinsville, Main Street, Collinsville.
Community Days at COCA: Come in costume for an hour of creative movement with COCA dance instructor Deborah Harris; for children ages 3 to kindergarten and their parents. Sun., Oct. 31, 3 p.m., free. Center of Creative Arts, 524 Trinity, University City, 314-725-6555, www.cocastl.org.
The Crazy Razor: Haunted house; visit The Crypt Haunted House next door! Through Oct. 31, 7 p.m. The Crazy Razor, 1019 North Skinker #19, St. Louis, 314-862-3327.
Creepy Crawl Halloween: Season-appropriate live music by Thanatos Eternal, Murder Happens, Daughters of Bristol, the Coil of Sihn, and the Scared. Sun., Oct. 31, 7 p.m., $6 to $8. Creepy Crawl, 412 N. Tucker, St. Louis, 314-851-0919.
The Crypt: Haunted house; visit the Crazy Razor haunted house next door! Through Oct. 31, 7 p.m. The Crypt, 1019 North Skinker #14, St. Louis, 314-862-3327.
Doggie Day Care Growl-O-Ween Party: Drop off your little four-legged goblin for a day of costume contests, supervised games and a special doggie cake. Fri., Oct. 29, 7:30 a.m.-6 p.m., $22.95. Petropolis, 16830 Chesterfield Airport Rd., St. Louis, 636-537-2322.
Elijah McLean's Haunted Halloween Party: Buffet dinner, appetizers, unlimited house wine and beer, music, fortune tellers and costume contest with cash prizes. Sat., Oct. 30, 6 p.m.-midnight, $25 to $30. Elijah's 1839 Riverfront Mansion, 600 W. Front, Washington, 636-239-3463.
Fred's Halloween Bash: Live music by the Tim Lee Band, Walnut St. Gang and the Good Griefs. Sat., Oct. 30, 5 p.m.-1 a.m. Frederick's Music Lounge, 4454 Chippewa, St. Louis, 314-351-5711, www.fredericksmusiclounge.com.
Free Trick or Treating: Pick up free treat bags from the concierge and trick or treat safely from store to store at all Westfield Shoppingtowns (South County, Northwest, Mid Rivers and West County; Chesterfield has trick or treating from 3 to 5 p.m. on Saturday, October 30). Sun., Oct. 31, 3-5 p.m. Westfield Shoppingtown Crestwood, Watson & Sappington, St. Louis, 314-962-2395.
Fright Fest: Six Flags transforms into a haunted scream park in October, with the 3-D Haunted House, Black Bart's Funeral, the Terror Train, and the interactive survival game "Fearanoia." Sundays, 11 a.m.-8 p.m.; Saturdays, 11 a.m.-10 p.m.; Fridays, 6 p.m.-midnight. Continues through Oct. 31, free with regular admission. Six Flags, I-44 & Allenton Six Flags Rd., Eureka, 636-938-4800, www.sixflags.com.
Garlic Festival and Garlic Contest: Ward off those vampires and have a garlicky good time; bellydancers perform throughout the evening. The garlic-eating contest begins at 7 p.m.; registering in advance is recommended. Oct. 27-29, 5 p.m. Simon's Cafe, 79 Forum Center, Chesterfield, 314-469-2210.
Dale Gebhardt: Photographs by this local award-winning photojournalist of two of St. Louis' garden cemeteries, Bellefontaine and Calvary. The opening reception is Friday, September 17, from 7-10 p.m. Through Nov. 7. North Gallery, 23 N. Florissant, in Soma's Coffeehouse, Ferguson, 314-839-0634, www.northgallery.net.
Get Out of the Suburbs and Into the City II: Trick or treating for the kids from 6 to 9 p.m., pumpkin carving contest, classic scary movies at the outdoor movie theatre, fortune telling on the first floor and complimentary food on the third floor; live music by the Hothouse Sessions from 9 p.m. to midnight. Sat., Oct. 30, 6 p.m.-midnight, $10. City Museum, 701 N. 15th, St. Louis, 314-231-CITY, www.citymuseum.org.
Grant's Farm Spooktacular: Dress in your costume to enjoy moonlight tram rides through the Deer Park, live entertainment and "Creature Feature" animal shows. Fri.-Sun., 6-10 p.m. Continues through Oct. 30. Grant's Farm, 10501 Gravois, St. Louis, 314-843-1700, www.grantsfarm.com.