- Alice's Wonderland Garden Party, Evergreen Musuem and Library, 6 to 8:30 p.m.
- Divided Voices:Maryland in the Civil War, Maryland Historical Society, daily
- The Wind-Up Space Anniversary Party, The Wind-Up Space, 10 p.m.
- The Anti-Social Network with Dave Attell, Jim Bruer and Bill Burr, DAR Constitution Hall, 8 p.m.
- My Life With Thrill Kill Kult, Bourbon Street, 7 p.m.
- Preakness 5K, Pimlico Race Course, 10:30 a.m.
- M3 Rock Fest, Merriweather Post Pavilion, 11 a.m.
- Big Truck Day, Baltimore Museum of Industry, 10 a.m. to 2 p.m.
- Marquee Lounge Opening, Creative Alliance, 6 to 8 p.m.
- John Waters signing, Atomic Books, 7 to 9 p.m.
- Doubt: A Parable, Spotlighters Theatre, check website for showtimes
- Mammojam Music Festival, 8x10, 6:30 p.m.