H-E-B Free First Sunday: Wide Open Spaces. The Bullock Museum's monthly family-friendly event celebrates Texas by land and by sea. Explore what the great outdoors have to offer with the Big Bend Conservancy and fly high with Redbird Flight Simulators, among other activities at this afternoon of free admission. There also will be three floors of exhibits you can get lost in and learn from. 12 to 5 p.m. Sunday. 1800 Congress Ave. thestoryoftexas.com.
"Game of Thrones" Trivia. There's no better way to catch up on the hit HBO show before its return for a final season on April 14 than with a trivia night when you'll be tested on your knowledge of the prior seven seasons. Registration will happen on site starting at 6:30 p.m., though the quiz doesn't begin until 8 p.m. The Local Post, 7113 Burnet Road. facebook.com/events/2296422863969670/.
Nature Fest at Concordia University. The university's unique setting at the edge of the Balcones Canyonlands Preserve offers the perfect environment for its annual Nature Fest. You don't have to be a student to participate in two of the presentations — Sky Kings Falconry on April 9 and Austin Reptile Service snake viewing on April 11 — and take daily guided hikes on varied lengths of the preserve trails. 12:30 p.m. Tuesday and Thursday. 11400 Concordia University Drive. concordia.edu/naturefest.
Music on Main. Celebrating the beautiful days of spring, the City of Round Rock continues its popular music series with a performance by Susan Hickman. You can grab a bite from vendors on site or pack a picnic basket, along with a lawn chair or blanket to lounge on. 6 to 8 p.m. Wednesday through May 29. Prete Main Street Plaza, 221 E. Main St., Round Rock. downtownroundrocktexas.com/music-on-main/.
"When They Appear" at Grayduck Gallery. Artists Larry Graeber and Marilyn Jolly have collaborated on this exhibition, which seeks to create a dialogue between them and their relationship to time, space and where we fit within it. The show includes sculpture, painting and mixed-media collage. 11 a.m. to 6 p.m. Thursday-Saturday, noon to 5 p.m. Sunday through April 14. 2213 E. Cesar Chavez St. grayduckgallery.com.
Movies in the Park. The Austin Parks Foundation’s family-friendly movie series drawing locals to their parks returns with another year of movies. Next up is the Ben Stiller comedy “Zoolander.” Food trucks will be in attendance at every screening. Dogs, picnics and lawn chairs are welcome, but alcoholic beverages, glass and Styrofoam are not permitted in any of the parks. 8:15 p.m. Friday. Monkey Tree in Zilker Park, 898 Azie Morton Road. austinparks.org.
Saturday, April 13
Live Oak Brewing's 22nd Anniversary Party. Celebrate more than two decades of this beloved Austin brewery at its scenic beer garden and taproom. There will be bands throughout the day, including Grupo Massa and Finite Fidelity, as well as specialty casks, stein hoisting competitions, multiple food trucks and more surprises. 12 to 8 p.m. Saturday. 1615 Crozier Lane. facebook.com/events/716462685421361/.