Uncover the secrets of ancient Rome, hidden in its underground cemeteries. Join a guided tour of the Catacombs of St. Callixtus, excavated by the Christians between the 3rd and 5th centuries. Learn about the mysterious origins of this site and its rediscovery in the modern era. Enter the crypt of the 3rd-century Popes, where 5 of the 9 tombstones of Rome's bishops who were buried here are still preserved. Then admire a slab of marble where some famous verses of Pope Damasus were engraved. Next, cross a narrow arch and enter the crypt where St. Cecilia, the patron saint of music, was first buried. Be inspired by her history while contemplating the crypt's decorative frescoes and a copy of the statue made by Maderno, depicting the martyr's body when a reconnaissance was made in 1599. From the crypt of Santa Cecilia, continue your tour through the oldest part of the catacomb. Admire its majestic galleries and the beautiful cubicles of "sacraments". Finally, walk through the maze of tunnels dug in peacetime, trying to find your way out. Along the way, see various archaeological finds of funeral furniture before coming up to see the sunlight again.

Indulge in all things Ancient Roman on this Ancient Appian Way, Catacombs, and Park of the Aqueducts E-bike tour. Ride through the Roman countryside, discover the engineering genius of the ancient Romans, and delve into the early Christian history that shaped the world to come. Meet your guide and leave the city through St. Sebastian's gate in the Aurelian Walls, and enter the Ancient Appian Way - a 2,400-year old thoroughfare that tells the story of Rome's rise, golden age, and decline. Make a stop underground at the Catacombs of St. Callixtus (or St. Sebastian) for a guided visit through its crypts and corridors. Next, cycle further on the Appian Way, passing mausoleums, tombstones, and sprawling villas of ancient aristocracy. Finally, head to the Park of the Aqueducts, where stretches of colossal arches rise against the warm afternoon light. After following these aqueducts back to modern civilization, cross the green Caffarella Valley. At its exit, you will begin your short ride back to the starting point - but not without one last highlight.