The tomb of Marie Curie in Paris, France: It's lined with inch thick lead to shield visitors from the radiation that emanates from her remains. Curie, a French Polish scientist, made history as the One of the most dangerous promotions in advertising history.: In 1974, a toy that came with actual polonium 210 a radioactive element lethal in even microscopic doses. In one of the most One of the most dangerous promotions in advertising history.: In 1974, a toy that came with actual polonium 210 a radioactive element lethal in even microscopic doses. In one of the most One of the most dangerous promotions in advertising history.: In 1974, a toy that came with actual polonium 210 a radioactive element lethal in even microscopic doses. In one of the most What kind of jewelry should I do with LuAG? (Yes it is glowing, no it's not AI, and no, It's not radioactive. Perfectly safe) : r jewelry