Exclusive Private Tour: Colosseum, Baths of Caracalla & Circus Maximus

The Baths of Caracalla (Italian: Terme di Caracalla) in Rome, Italy, were the city's second largest Roman public baths, or thermae. The baths were likely built between AD 212 (or 211) and 216/217, during the reigns of emperors Septimius Severus and Caracalla.[2] They were in operation until the 530s and then fell into disuse and ruin. Both during and since their operation as baths, they served as inspiration for many other notable buildings, ancient and modern, such as the Baths of Diocletian, the Basilica of Maxentius, the original Pennsylvania Station in New York City, Chicago Union Station and the Senate of Canada Building. Artworks recovered from the ruins include famous sculptures such as the Farnese Bull and the Farnese Hercules.

The Arch of Constantine (Italian: Arco di Costantino) is a triumphal arch in Rome dedicated to the emperor Constantine the Great. The arch was commissioned by the Roman Senate to commemorate Constantine's victory over Maxentius at the Battle of Milvian Bridge in AD 312. Situated between the Colosseum and the Palatine Hill, the arch spans the Via Triumphalis, the route taken by victorious military leaders when they entered the city in a triumphal procession. [a] Dedicated in 315, it is the largest Roman triumphal arch, with overall dimensions of 21 m (69 ft) high, 25.9 m wide, and 7.4 m deep. It has three bays, the central one being 11.5 m (38 ft) high and 6.5 m (21 ft) wide and the laterals 7.4 m by 3.4 m each. The arch is constructed of brick-faced concrete covered in marble. The three-bay design with detached columns was first used for the Arch of Septimius Severus in the Roman Forum (which stands at the end of the triumph route) and repeated in several other arches now lost.

The Palatine Hill (/ˈpælətaɪn/; Latin: Collis Palatium or Mons Palatinus; Italian: Palatino [palaˈtiːno]), which relative to the seven hills of Rome is the centremost, is one of the most ancient parts of the city and has been called "the first nucleus of the Roman Empire."[1] The site is now mainly a large open-air museum while the Palatine Museum houses many finds from the excavations here and from other ancient Italian sites. Imperial palaces were built here, starting with Augustus. Before imperial times the hill was mostly occupied by the houses of the rich. The hill originally had two summits separated by depression; the highest part was called Palatium and the other Germalus (or Cermalus). Using the Forma Urbis its perimeter enclosed 63 acres (25 ha); while the Regional Catalogues of the 4th century enclose 131 acres (53 ha).[2]