Paris is indeed a city bustling with monuments, museums, and landmarks, but if you're looking for a more unique approach to experience this City of Light, then this tour might be just what you'd like. Come descend into the Catacombs, Paris's fascinating tunnel complex located beneath the city. With parts of it used as an underground ossuary since its establishment in 1810, the place is home to around 6 million skeletal remains and has been attracting over 450,000 worldwide visitors each year. As you venture into the tunnels, you'll also hear fascinating insights about the Catacombs' history from your guide!