Crypts and Catacombs of Rome: Skip the Line Tour From 49€! And more Rome deserves to be explored from every angle and perspective! When you plan your Roman holiday, you cannot skip visiting the fascinating and mysterious underground ruins of the Eternal City. Many ancient Roman ruins are still uncovered today during excavations for infrastructural work and some of these ruins are occasionally buried up to 10 meters underneath the modern city. Among the places to discover in Underground Rome are the underground ruins of Saint Lawrence in Lucina, a medieval church with the ruins of a previously constructed basilica buried in the underlying crypt, as well as the ruins of an ancient apartment complex.