The Mausoleum of Hadrian, usually known as Castel Sant'Angelo (Italian pronunciation: [kaˈstɛl sanˈtandʒelo]; English: Castle of the Holy Angel), is a towering cylindrical building in Parco Adriano, Rome, Italy. It was initially commissioned by the Roman Emperor Hadrian as a mausoleum for himself and his family. The building was later used by the popes as a fortress and castle, and is now a museum. The structure was once the tallest building in Rome.

The Roman Pantheon is the most preserved and influential building of ancient Rome. It is a Roman temple dedicated to all the gods of pagan Rome. As the brick stamps on the side of the building reveal it was built and dedicated between A.D 118 and 125. The emperor Hadrian (A.D 117-138) built the Pantheon to replace Augustus’ friend and Commander Marcus Agrippa’s Pantheon of 27 B.C. which burnt to the ground in 80 A.D

A bearded face carved into a giant marble disc, the Bocca della Verità is one of Rome's most popular curiosities. Legend has it that if you put your hand in the mouth and tell a lie, the Bocca will slam shut and bite your hand off.

Saint Peter's Basilica, is the most famous Roman Catholic church in the world and one of the holiest sites in Christendom, dating back to Roman architecture of the early Christian art period. The basilica, now the Pope's principal church, was built according to tradition above the burial site of St. Peter, one of the twelve disciples of Jesus and the first Bishop of Rome, who was martyred in the year 64 CE.

it is the largest Baroque fountain in the city and one of the most famous fountains in the world. The fountain has appeared in several notable films, including Federico Fellini's La Dolce Vita, the eponymous Three Coins in the Fountain.

Piazza Navona is one of the most famous and arguably the most beautiful of Rome's many squares. The large and lively square features no less than three magnificent fountains. Another eyecatcher is the Baroque church of Sant'Agnese in Agone.

The monument holds great national significance. It is an architectonic and artistic tribute to the Italian Risorgimento: the complex process of unification undertaken by Victor Emmanuel II throughout the second half of the 19th Century. It is regarded as a national symbol of Italy and every year it hosts important national celebrations.

The Spanish Steps is one of Rome's most recognizable attractions and a popular gathering spot, but was intended as a gateway to the church that rests atop the staircase. The elegant staircase of 135 steps was inaugurated in the Jubilee Year of 1725 by Pope Benedict XIII, originally used to link the Bourbon Spanish Embassy to the Church of Trinità dei Monti. The name comes from the Spanish Embassy to the Vatican that has been located in the piazza since the 1600s.

This is known as the city of seven hills, but actually Rome has more than that. Indeed, the Gianicolo (or Janiculum), the hill that affords the best view of Rome, is west of the Tiber and outside the ancient city, so it's not counted among the ancient seven.