This Oct. 8, 2019 photo shows one wall of the Glass Flowers exhibit at the Harvard Museum of Natural History in Cambridge, Mass. The Glass Flowers date back to the 19th and early 20th centuries, and were intended to dazzle the public while educating botany students. They have been on display continuously at Harvard since 1893. This third-floor gallery at the Harvard Museum of Natural History is one of the institution's most beloved _ and most visited _ treasures. (Tracee Herbaugh via AP)
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