Eternally Burning Lamps
Even the best “extra-life” lightbulbs money can buy eventually die on you, so the idea of lamps burning in the middle ages without ever being snuffed out is insanely impressive. These mysterious everlasting lamps were sealed in tombs to help guide the dead into the afterlife. The freaky part is the fact that when these tombs were re-opened thousands of years later, the lamps were still burning bright (without any fuel!).
Unfortunately, some treated these ever-burning lamps with suspicion and destroyed many lamps for fear that they held a supernatural curse. Since the first known discovery of these eternal lamps, many have cropped up around the world from England and North America to Egypt and China. There could be hundreds more tombs waiting to be uncovered that may hold more of these magical lamps. For now, experts are still very much in the dark about it.