Spectacle

1st Mariner Arena

201 W. Baltimore St., Baltimore. 410/347-2020, www.baltimorearena.com, 410-547-SEAT or ticketmaster.com

• “Walking With Dinosaurs — The Live Experience.” Animatronic robot dinosaurs. 7:30 p.m. Wednesday-Friday; 10:30 a.m. Friday; 11 a.m., 3 and 7 p.m. Saturday; 1 and 5 p.m. Sunday. April 30-May 4. $34.50-$71.50.

Patriot Center

4400 University Drive, Fairfax. 202/397-SEAT, www.patriotcenter.com

• Ringling Bros. and Barnum & Bailey Circus: Bellobration. The Red Show tour spotlights top clown Bello. Call for times or check the Web site. Through April 13. $14-$95.

• Ultimate Warrior Challenge Invasion. Cage fighting, mixed martial-arts stars. 7 p.m. April 26. $28.50-$128.50.