Through early April, the fourth level of the main Aquarium building will be closed for renovation, changing access to exhibits, amenities and guest routes.
Baltimore County Executive, ex officio
John "Johnny O" Olszewski, Jr. is a lifelong Baltimore County resident who believes in the power of public service and giving back to a community that has done so much for him. He is a graduate of Sparrows Point High School, earned his undergraduate degree from Goucher College and earned a master's degree from The George Washington University. He also holds a Ph.D. in public policy from the University of Maryland Baltimore County.
