Museums are places that house thousands of priceless artifacts. We would hope that the security around these places is top-notch. The Natural History Museum in New Delhi, India found their weak spots the hard way when a fire burned the entire thing to the ground in 2016. Despite the efforts to stop the flames basically, every single item was destroyed. The blaze was just too intense for fragile artifacts to survive.
30 firetrucks failed to halt the heat. Archaeologists and historians were mortified, not to mention the museum's many visitors. Countless process specimens were lost forever. A 160 million-year-old dino skeleton, included!