Acrobats, dancers and unicyclists from Ringling Bros. and Barnum & Bailey will perform six shows in Baltimore this November in the traveling circus’s first tour returning from a six-year hiatus. The shows at CFG Bank Arena will include aerial stunts such as a crisscross flying trapeze, multiple performers on a triangular high wire and a trampoline bouncing both bicycle and unicycle riders into the air, but will not feature elephants and other animals, who were retired before the circus’s eventual closure in 2016.