The Catacombes is an unusual Paris museum with displays of skulls and bones of six million of Paris' dead citizens. Visitors queue for hours to get into this "Empire of Death" which is rather bizarre. During the French Revolution, people were buried here directly, including the Swiss Guards who were killed at the storming the Tuileries and the victims of the guillotine. When you walk through the galleries, you'll see some famous names like Danton, Desmoulins and Robespierre. Read more about our visit to the Paris Catacombes Here.