The Washington Wedding Experience will take place Sunday, April 19 from 11 a.m.-5 p.m.at the Dulles Expo Center, 4320 Chantilly Shopping Center. Among vendors of all kinds, find workshops on the principles of wedding planning. Fashion shows of wedding gowns, bridesmaids dresses, and formal wear will accompany a “Wedding Inspiration Gallery” at the show. Tickets are $10. Visit www.weddingexperience.com.
Tree Trek. 9:30-11 a.m. at Ellanor C. Lawrence Park, 5040 Walney Road, Chantilly. Jim Dewing will lead a tour of the biggest, oldest and rarest trees in the park. Tickets are $6. Call 703-631-0013.
Earth Day. 11 a.m.-12 p.m. at Ellanor C. Lawrence Park, 5040 Walney Road, Chantilly. Learn about the changing environment and how to recycle household items. Tickets are $5. Call 703-631-0013.
Vinyasa in the Vineyard. 11 a.m. at The Winery at Bull Run, 15950 Lee Highway, Centreville. The Winery at Bull Run is offering a “Stretch & Sip.” Tickets are $15. Visit www.wineryatbullrun.com.
Bluegrass & Barbecue. 11 a.m. The Winery at Bull Run, 15950 Lee Highway, Centreville. Bluegrass bands will accompany barbecue provided by Bad to the Bone. Free. Visit www.wineryatbullrun.com.
Washington Wedding Experience. 11 a.m.-5 p.m. at Dulles Expo Center, 4368 Chantilly Shopping Center, Chantilly. Find fashion shows, vendors, and workshops. $10. Visit www.weddingexperience.com.
Model Train Show. 1-4 p.m. at Fairfax Station Railroad Museum. The Northern Virginia NTRAK Members will hold an N gauge model train show. Admission for museum members is free; $4 for adults 16 and up; $2 for children. Visit www.fairfax-station.org.
Annual 5K and Candlelight Vigil. 4:30 p.m. at 4100 Monument Corner Drive, Fairfax. Find a resource fair, live music, walk, and vigil in honor of crime victims. Free. Visit www.ovc.gov.
Austrian Takeover. 5 p.m. at Trummer’s on Main, 7134 Main St., Clifton. Enjoy wine and food from the Austrian culture by partaking in a wine tasting and five-course Austrian meal. Tickets are $45-135. Visit www.trummersonmain.com/events.