The vaulted forms and undulating walkways of Cuba’s National School of Ballet (Ballet School) are considered light and graceful, and yet, despite efforts by many Cubans and non-Cubans, these structures sit unoccupied and exposed to a persistently warm and wet tropical environment. The design and construction of the Ballet School structural system was thought to be one of the few modern examples of an ancient construction technique known as tile vaulting (also Catalan vaulting or, in US, Guastavino vaulting) that has defied standardized computational analysis. Given this exciting possibility, there has been a growing interest in conducting formal engineering analyses on the structures, however their remote location has prevented any such advances. In addition to the ongoing physical deterioration of the structure from environmental exposure, the construction-record documents are in jeopardy of being lost forever, therefore, it is deemed a critical time to digitally document the structure and corresponding documents from an engineering perspective, which would grant universal access to the structure thus allowing future engineering analyses. Given the Ballet School’s complex and interwoven cultural, social, political, architectural, and engineering backstory, this work implements an interdisciplinary approach of study, which is imperative if preservation of this structural icon is to be successful. While conducting this archival work, original architectural drawings, historic photographs, and interviews with key members of the design and construction team were reconciled with fieldwork conducted in November 2016 which resulted in the major discovery of a reinforced-concrete, grid-shell system underneath the adobe tile cladding.