Descend beneath the streets of Paris to uncover the darker side of the City of Lights. Follow your guide and skip the line to venture through eerie tunnels and stone quarries lined with the skulls and bones of over six million dead, dating back to the French Revolution. Listen to stories and mysteries of the burial sites, and discover undergroung realms closed off to the general public, including the Port Mahon Gallery, Quarryman’s Footbath and Gilbert’s Tomb.