Model Railroad Show

Displays of dozens of detailed, creative model-railroad layouts and train-related displays and activities by the Model Railroad Association fill Seattle Center Saturday through Monday, including Horse Railway rides for kids under the arches and the IMAX film “Rocky Mountain Express” transcontinental-railway adventure. 10 a.m.-6 p.m. Saturday, Sunday and Monday, Pacific Science Center, 200 Second Ave. N., Seattle; $9-$20 (206-443-2001 or www.pacificsciencecenter.org/).

Doggie Nature Walk: Leashed dogs welcome on guided-nature walk for all ages to learn about wildlife, 1 p.m. Saturday, Seward Park Audubon Center, 5902 Lake Washington Blvd. S., Seattle; $3-$5, preregister (206-652-2444 or www.brownpapertickets.com/event/310423).

Cool City Pets: Adoption event for small animals including rabbits, hamsters, guinea pigs, rats, birds, reptiles, ferrets, 1-3 p.m. Saturday, Seattle Animal Shelter, 2081 15th Ave. W., Seattle; adoption fees $15-$40 (206-386-7387 or www.seattleanimalshelter.org).

Burns Night: Royal Scottish Country Dance Society dancing, music, poetry to celebrate the life of Scottish poet Robert Burns, 7 p.m. Saturday, Congregational Church of Mercer Island, 4545 Island Crest Way, Mercer Island; $12 at the door (rscds-seattle.org).

Hawaii Weekends, Seattle Aquarium: Hawaiian entertainment, activities, special diver shows, enter to win a trip to Hawaii, 10:30 a.m.-3 p.m. Saturday-Sunday and Jan. 26-27, Seattle Aquarium, 1483 Alaskan Way, Seattle; $13.95-$19.95, ages 2 and younger free (206-386-4300 or www.seattleaquarium.org).

Share the Dream Musical Celebration of Martin Luther King Jr.: Music with the Total Experience Gospel Choir, reflection from the Rev. Dr. Samuel McKinney, local civil-rights leader and King classmate at Morehouse College, 3 p.m. Sunday, Seattle First Baptist Church, 1111 Harvard Ave., Seattle; free, offerings accepted to benefit the Emergency Feeding Program of Seattle & King County (206-329-0300 or www.emergencyfeeding.org). For more MLK events, go to seattletimes.com.

Bellevue Arts Museum Family Day: Performances from world cultures, art activities for kids, free admission for all, noon-4 p.m. Sunday, Bellevue Arts Museum, 510 Bellevue Way, Bellevue (425-519-0770 or www.bellevuearts.org).

Arboretum walk: Tour with ancient-trees theme 1 p.m. Sunday, Graham Visitor Center, 2300 Arboretum Drive E., Seattle; free, call to verify event (206-543-8800).