#3. THE CATACOMBS OF PARIS
What lies under the city of light is a huge catacomb lined with human skeletons and skulls. Due to overpopulation in the 12th century, death rates also increased. This caused cemeteries to have no more room for the dead and so they started burying the dead in abandoned mines below the city.
Because of this, by the 17th century, they began to meticulously rearrange the skeletons decoratively as we see today. You would see rows and rows of skulls and bones on the walls and pillars of the catacombs. Calming or creepy? Its for you to decide. Because you can visit this place as it is opened to the public and if you last until the bottom of the catacomb, there is supposedly a single ancient gate with writing on it, it translates to “stop! Here lies the Empire of Death”.