From Colosseum, take the escalators inside Metro B station in Via dei Fori Imperiali and once you are on the top, please have first the great and impressive panoramic view of Colosseum, Costantino Arch, Palatino hill and Fori Imperiali, then turn back and take via della Polveriera and from Largo della Polveriera, make a left and you are on via Eudossiana.
From via Cavour, take either the stairs in front of Palatino Hotel which bring you in front of S. Pietro in Vincoli Basilica, or from Metro B station via Cavour take the stairs of via Monte Polacco once on the top either make a right towards S. Pietro in Vincoli or walk on your left side to via delle Sette Sale and enter the back entrance of the Faculty.
This is not the best way but if you cannot avoid it here are some routes depending where you come from.
From Piazza Vittorio, cross Largo Brancaccio, straight on enter via Lanza, take the first street on the left, via Equizia, at the end make a right and you are on via del Colle Oppio, park where you can. If you park inside the blue lines, please make sure you pay the parking fare in advance (use the machines on the sidewalk or purchase the tickets in advance at newsstands or tobacco shops).
From Piazza Venezia, take via dei Fori Imperiali and then make a left on via Cavour and drive to via Lanza. Find via Equizia on the right side then continue as above.
By public transportation
By bus: lines 81, 85, 87, 11 and 27 stop at Colosseum.
By tram: line 30 stops at Colosseum.
By metro: you can exit at either Colosseum or via Cavour stations of blue line B and follow the indications above.
From the International Airport “Leonardo da Vinci”
By taxi: fare 40 Euros, it takes about 50 minutes up to 90 minutes in heavy traffic conditions.
By train: the easiest way is to take Leonardo Express direct train to Termini Station. From there you can walk to via Cavour (it takes about 15 minutes) or take a taxi or Metro B (one stop to via Cavour). As an alternative you can take a local train to Ostiense Station and take Metro B. For information on timetables and fares visit www.trenitalia.com.