Ohio’s Cuyahoga Valley was formed some two million years ago by successive glacial encroachments that subsumed the region and carved its many river valleys and the Great Lakes. The ice caps are long gone but their spirit is now front and center at the Cleveland Museum of Natural History (CMNH), in the form of a rippling glass-fiber reinforced concrete (GFRC) facade element. It is the most conspicuous element of a $150 million renovation and expansion led by the local office of DLR Group. The multiphase 375,000 square-foot project, which wrapped up construction in December 2024, also saw the gut renovation of existing gallery spaces, the construction of new exhibition halls, and rejuvenated landscaping.