Creative Alliance at the Patterson — 3134 Eastern Ave., hosts the the Baltimore Improv Festival, Aug. 11-14. $10-15. Call 410-276-1651 or go to http://www.baltimoreimprovfestival.org or http://www.creativealliance.org.
The Baltimore Museum of Art — 10 Art Museum Drive, features Jazz in the Sculpture Garden, Aug. 13, with the Tim Green Quintet. General admission is free. Call 443-573-1870 or go to http://www.artbma.org. General admission is free.
Baltimore Child Abuse Center — 2300 N. Charles St., presents Music & Mosaic, a benefit concert, Aug. 13, 7-10 p.m., for ages 21 and older. Welcome Art with a Heart for the unveiling of the new mosaic mural at the concert, featuring local band Set Sail Joseph. $20 includes food and wine. Call 410-396-6147 or go to http://www.baltimorechildabusecenter.org or http://www.artwithaheart.net.
Eat-A-Peach Challenge Bike Ride — sponsored by the Brain Injury Association of Maryland is Aug. 13. Routes start and end at the Peach Festival, Carroll County Agricultural Center, in Westminster, and wind through Carroll and Frederick counties. Call 410-448-2924 or go to http://www.charmcityrun.com or http://www.biamd.org to download a registration brochure.
Belvedere Square — York Road and Belvedere Avenue, continues its free Summer Sounds at the Square series of — weekly outdoor concert series on Friday evenings, 6-9 p.m., featuring live music by a local band.On Aug. 12, the Remainders, play classic and alternative rock.
Peak Cat Fanciers; Association — sponsors Cat Club Show at the Maryland State Fairgrounds. Aug. 13-14, 10 a.m.-4 p.m. Tickets at the door, $6 for adults, $4 for seniors/children and $16 per family. Go to http://www.catshowsmd.com or call 301- 509-1454.
Waverly Library — 400 E. 33rd St., celebrates National Roller Coaster Day with footage of great coasters in the U.S. and around the world, Aug. 16, 3 p.m. Call 410-396-6053.