Preparing for the aftermath of COVID-19: our cultural heritage is at risk A 2011 survey by ICCROM/UNESCO has revealed that up to 60% of museum collections are endangered globally. Storage overloads, poor conditions for conservation and budget constraints contribute to risk factors. 95% of a museum’s collections are kept in storage. Billions of objects are kept away from public sight. One in four museums have incomplete documentation systems. One in 10 museums, or less, have made their entire collections digitally accessible with pictures and metadata.