The Church of Santa Maria and the Mouth of Truth

The Church was built on pagan ruins. Is a place where Roman architecture and history combine. 

On one of the walls there is a cracked marble disk depicting the face of the river god, with an open mouth. According to the legend, if you put your hand into the mouth and tell a lie, the mouth will bite your hand. The legend tells that a man decided to test his wife's faithfulness, and in front of a crowd, he asked her to put her hand into the Mouth of Truth. Just as she was about to put her hand into the mouth, she was assaulted by a man who leaped out to kiss and embrace her. Everyone thought he was crazy, so she was let go.
Therefore, when the man asked his wife whether she had been faithful to him, the wife answered that no one but her husband and that crazy man had ever touched her. She told the truth... because the crazy man was actually her lover. 
 
The Spanish Steps (Piazza di Spagna) are located at the end of Via Condotti and consist of 12 flights of stairs, which lead to Piazza Trinita dei Monti.
In front of the steps there is a fountain featuring "Barcaccia", a large boat that gushes water as it sinks.
 
The Catacombs of Rome are the subterranean Christian cemeteries from the third to the fifth century. To bury their dead, whom Christians believed had to be buried in imitation of Christ's death, they were forced to look outside the city. Consequently, they dug subterranean passages with niches cut into the walls, where the dead were laid in their clothes and funeral linens, sprinkled with scented oils to mask the odor of decay. The bodies are gone, but you can still walk down the echoing passages and get a sense of the lingering spirits. 
 
The Colosseum is probably the best-known Roman building. It is an immense elliptical building and was the largest of its time, built between 72 AD and 80 AD.

The games played here consisted of fights to the death with wild animals. It was the slaves who were usually forced to fight the animals. The games were a symbol of prestige and power, and often emperors use them to increase their popularity. 
 
Fontana di Trevi (The Trevi Fountain) is the largest and most ambitious of the Baroque fountains of Rome. The Fountain represents the Tritons that guide Neptune's shell chariot, while taming seahorses.
Don’t forget to throw a coin in it! It will make you return to Rome.
 
Giancolo Hill

Domus Aurea is the golden palace built by Nero after the great fire that had almost leveled Rome. The remains can be found beneath the ruins of Trajan's Baths.
The ruins have been available to the public since 1999. For visits at the ruins of the palace, advanced reservation is needed.

St. Peter's Basilica is one of four major basilicas of Rome and the most prominent building inside the Vatican City. There are over 100 tombs located within St. Peter's Basilica, many of which are placed beneath the Basilica. On top are the statues of Christ, John the Baptist, and eleven of the Apostles.

The Baths of Caracalla were Roman public baths, or thermae, built in Rome between 212 and 216 AD, during the reign of Emperor Caracalla and are a popular tourist attraction. The ruins stand as the backdrop for Teatro dell'Opera di Roma in the summer opera season. It has also become a venue for modern cultural events, such as the gymnastics competition during the 1960 Summer Olympics in Rome and the concert of the Three Tenors at the end of the 1990 FIFA World Cup.

One of the best entertainment venues are the theaters. Tourists can enjoy a number of productions. During the summer, an English speaking group of performers, called The Miracle Players, put on comedy performances at historic locations around the city. At the Forum you can see “Rome In A Nutshell” and “200 Years of Roman History”, presented in 40 minutes. Great fun for the whole family.

If you are a fashion freak and keen on Italian clothes, the best place you should go is between the Spanish Steps (Piazza di Spagna) and Via del Corso. Via dei Condotti, directly opposite the Spanish Steps, is home to many of the biggest names in fashion and jewelry. Souvenirs can be found at every corner at street stalls and in crowded shops. The best place for kitsch gifts is the Vatican area, with ranks of glow-in-the-dark Madonnas and holographic Pope cards. Shops around Piazza Navona sell high-priced ceramics and will organize shipping. Countless little shops all around the centre will sell you exciting pasta, sauces, and culinary specialties from all around Italy.
 
A big business in Rome is Antiques, and obviously, you should be sure of what you're buying. The best streets for antique shopping are Via dei Coronari, in the Centro Storico, and Via del Babuino (between Piazza del Popolo and the Spanish Steps).