The Catacombs of Paris offer one of the most unique things to do in Paris. Located underground, this eerie site is home to millions of bones. The catacombs provide a haunting glimpse into Paris’ history, from its medieval quarries to its 18th-century use as burial grounds. Visitors can explore narrow tunnels lined with skulls and bones, and learn about the city’s fascinating past. It’s a memorable experience for anyone interested in history and the macabre. Don’t miss this thrilling Paris attraction during your visit. It’s an unforgettable part of the Paris experience that you won’t find anywhere else.