
Marie Curie’s century-old notebooks are still radioactive, so they’re kept in lead-lined boxes for protection against radiation exposure.

Photo via: Wellcome Library, London
Anyone wishing to handle her notebooks, personal effects, or other items have to wear protective gear and sign a liability waiver, just in case. She basically walked around carrying radium and polonium in her pockets, so… yeah.

Photo via: Amanda Macias/Business Insider
Marie and her husband Pierre are buried in Paris’s Panthéon, a mausoleum in that contains the remains of distinguished French citizens — including philosophers Rousseau and Voltaire.