This was one the best experience in Rome. The Catacombe di San Sebastiano is the most interesting between the other two. You can go riding a taxi (it's easy get taxis to go back), or take a excursion from your Hotel. The ride into the Tombs take one hour. They have guides Spoken in English or Italian. Be sure to take the right one. The San Sebastian's history is very interesting. He is "Patrono" of the city of Rio de Janeiro in Brazil. You can miss this.
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