What is the paris catacombs?

The Paris Catacombs are a network of underground tunnels and chambers located beneath the city of Paris, France. The Catacombs contain the remains of approximately six million people, most of whom were buried between the 18th and 19th century when Paris' cemeteries were overcrowded and posing a public health hazard. The bones were transferred to the Catacombs, where they were arranged in elaborate patterns and displayed for public viewing. Today, the Catacombs attract thousands of visitors every year, but only a small section is open to the public, as the tunnels are dangerous and can easily become disorienting. The Catacombs remain a popular destination for tourists curious about Paris' macabre and mysterious history.