The Maryland Zoo in Baltimore will host its annual ZooBOOO! Friday-Sunday, Oct. 28-30, 10 a.m.-4 p.m. Children (and adults) can participate in games, go trick-or-treating and take part in a costume contest (11:30 a.m. and 2:30 p.m. each day). Visiting performers will include Silly Goose and Val's Musical Zoo (10:30 a.m.) and Captain Jack (1:30 p.m.). Cost is free with regular zoo admission. Call 410-366-LION.

Discover Halloween

Baltimore's children's museum, Port Discovery, will host a Fall-O-Ween Festival Saturday, Oct. 29, 11 a.m. The event is designed as a non-scary way for parents and young children to dress up and celebrate Halloween. Kids can make their own mummies and tutus and join in other family-friendly activities. Admission is $13.95 for people ages 2 and up and free for anyone younger. Call 410-727-8120.

Disney rides again


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Disney on Ice will unveil its newest show, "Dare to Dream," Wednesday, Oct. 26-Sunday, Oct. 30, at the 1st Mariner Arena. The production will feature two of Disney's newest princesses in its story of romance and adventure. Showtimes are Wednesday-Friday 7:30 p.m., Saturday 11 a.m., 2:30 p.m. and 6:30 p.m. and Sunday 12:30 p.m. and 4:30 p.m. Tickets run $15-$56. Call 800-551-SEAT.

Lantern parade

The Creative Alliance will stage its annual Great Halloween Lantern Parade Saturday, Oct. 29, 7 p.m., in Patterson Park. The parade will start at the Pulaski Monument (at Linwood and Eastern avenues). This year's edition will be staged by new artist Laure Drogoul, who will create lanterns out of re-purposed plastic bottles. Admission is free. Call 410-276-1651.

Science gets spooky

The Maryland Science Center will hold its third annual Halloween celebration called Spooky Science Saturday, Oct. 29, noon -4 p.m. The family-oriented event will feature mad scientists roaming through the building with hair-raising experiments and demonstrations. Cost is free with paid admission (and free to members). Regular admission is $14.95 and $11.95 for children. Call 410-864-2700.

Trains return

Some 500 tables of scale model train merchandise will be featured at the Great Scale Model Train Show, Saturday-Sunday, Oct. 29-30, in the Maryland State Fairgrounds' Cow Palace. Visitors can check out operating model train layouts brought in by dealers from around the county and buy parts and tracks. Hours are Saturday 9 a.m.-4 p.m. and Sunday 10 a.m.-4 p.m. Admission is $8-$9 general, $18 for families, and free for kids younger than 12. Visit: http://www.gsmts.com.

History by lantern

The Fire Museum of Maryland will hold its annual Lantern Night Saturday, Oct. 29, 6-8 p.m., at its headquarters at 1301 York Road in Lutherville. At the event, re-enactors will recreate historical events while bathed in the glow of lanterns. Cost is free with general admission, which is $12 general, $10 for seniors and firefighters and $5 for children. Call 410-321-7500.

Mighty Aphrodite

The Walters Art Museum will host a talk, Chasing Aphrodite: A Story of Antiquities Purchases, Confidential Sources & Ethical Dilemmas, Saturday, Oct. 29, 2 p.m., in its Graham Auditorium. The event will feature authors Jason Felch and Ralph Frammolino answering questions from a WYPR radio host about the ethically challenging world of antiquities acquisitions. Admission is free. Call 410-547-9000.

Mummers on parade

The city of Hagerstown will host its popular annual Alsatia Mummers Parade Saturday, Oct. 29, 6 p.m., in its downtown area. This longtime traditional fall event features local floats, bands and individual costumed mummers. Admission is free. Call 301-739-2044 or go to http://www.alsatiaclubinc.com.