The Piazza di Spagna is a square in the centre of Rome. It lies at the foot of the Spanish Steps and owes its name to the Palazzo di Spagna, the seat of the Embassy of Spain to the Holy See. The Column of the Immaculate Conception is in the square. In the middle of the square is the Fontana della Barcaccia, dating to the beginning of the Baroque period, sculpted by Pietro Bernini and his son Gian Lorenzo Bernini.

The Trevi Fountain is an 18th-century fountain in the Trevi district in Rome, designed by Italian architect Nicola Salvi and completed by Giuseppe Pannini and several others. It is the largest Baroque fountain in the city and one of the most famous fountains in the world.

The Pantheon is an ancient 2nd century Roman temple and, since AD 609, a Catholic church called the Basilica of St. Mary and the Martyrs in Rome. It is perhaps the most famous, and architecturally most influential, rotunda.

Piazza Navona is a public open space in Rome. It is built on the site of the 1st century AD Stadium of Domitian and follows the form of the open space of the stadium in an elongated oval. The ancient Romans went there to watch the agones ("games"), and hence it was known as "Circus Agonalis" ("competition arena"). In the 17th century it became a showcase for Baroque design, with work by Bernini and Borromini among others. The Fontana dei Quattro Fiumi stands in front of the Church of Sant'Agnese in Agone.