Housed inside the UGA College of Environment and Design on North Campus, the Circle Gallery is dedicated to presenting visual work that incorporates elements of landscape architecture, historic preservation, planning and design. Atlanta artists Diane Solomon Kempler and Katherine Mitchell both explore the relationship between nature and mankind through their artwork. Kempler’s ceramic forms in “Garden of Biotanical Delights” are inspired by the mystery of the microscopic world, color palette of visible nature and eccentricity of Bosch’s famous painting. Mitchell’s mixed-media paintings in “Hearing the Trees” emphasize minimalism and geometric forms for a meditative and calming effect. Both exhibitions can be visited until Dec. 7.