The Colosseum is Rome's iconic amphitheater for gladiatorial contests and spectacles, while the Imperial Fora are a series of monumental public squares built by emperors (like Caesar, Augustus, Trajan) near the original Roman Forum, serving as the political, religious, and social heart of the ancient city, filled with temples, basilicas, and statues. Together, they form a massive archaeological area representing the power and daily life of Imperial Rome, often visited with the adjacent Roman Forum and Palatine Hill.

Vatican City is the Centre of Christianity since the foundation of Saint Peter's Basilica by Constantine (4th century). Piazza San Pietro, or St. Peter's Square, was designed by the famous sculptor Bernini under Pope Alexander VII's watchful eye. Built between 1656 and 1667 on the site where the apostle Peter was martyred, the square was made to enhance the grandeur of St. Peter's Basilica.

The Pantheon in Rome is a remarkably preserved ancient Roman temple, originally built for all gods (hence the name "pan-theon"), later converted into a Christian church (Santa Maria ad Martyres), and now a tomb for Italian kings and artists like Raphael, famous for its massive dome with the central oculus (open eye) letting in light, a marvel of engineering that has stood for nearly 2,000 years.

Piazza Navona is Rome's iconic Baroque square, famous for its vibrant atmosphere, street artists, and magnificent fountains, especially Bernini's Fountain of Four Rivers, built over the ancient Stadium of Domitian, an athletic arena from 86 AD, giving the piazza its distinctive long, oval shape and name (from Agones for games). It's a central hub for culture, dining, and people-watching, showcasing Baroque art and architecture with surrounding palaces and churches like Sant'Agnese in Agone.

Fontana di Trevi (Trevi Fountain) is Rome's largest Baroque fountain, a stunning masterpiece of sculpture and architecture at Piazza di Trevi, known for its iconic depiction of Oceanus, the coin-tossing tradition for returning to Rome, and its feature in films like La Dolce Vita. This monumental fountain, built by Nicola Salvi and completed in 1762, marks the terminal point of the ancient Aqua Virgo aqueduct and is a major symbol of Rome's artistic heritage and La Dolce Vita lifestyle.

The Spanish Steps (Scalinata di Trinità dei Monti) in Rome are a famous Baroque staircase connecting Piazza di Spagna with the Trinità dei Monti church, built in the 1720s by Francesco de Sanctis, featuring 135 steps, beautiful azaleas in spring, and the Barcaccia Fountain at the base, but sitting on them is now prohibited.

The Terrazza del Gianicolo (Janiculum Terrace) in Rome is a famous panoramic viewpoint on top of Janiculum Hill, offering breathtaking, sweeping views of the entire city's skyline, including landmarks like the Pantheon and St. Peter's Basilica, especially stunning at sunset, and features the historic noon cannon shot tradition, making it a beloved spot for locals and tourists alike for romantic strolls and iconic photo opportunities.