The street is named after the Palazzo del Governo Vecchio, the seat of the Papal government in the 17th and 18th centuries. It was part of the Via papalis which connected St. John Lateran and St. Peter's. Houses nr. 104 and 106 date to the 15th century and there are some houses from the 16th century as well. The palace on nr. 123 was intended to be the residence of Bramante. The Palazzo del Governo Vecchio is situated just opposite.
Basilica of St. Mary and the Martyrs
It was built in 27 BCE, by Augustus' right hand man Marcus Agrippa, and later remodeled by the Emperor Hadrian (AD 125-128). This ancient temple was built as a temple to all the gods of the Roman state but has served as a Christian church since the 7th century. It is the only building from the Graeco-Roman world which has remained substantially intact and in continuous use throughout to the present day, and as it is still a functioning church, silence is requested during your visit. The Pantheon is celebrated for its large dome. From inside you'll see traces of the former bronze ceiling, melted down during the reign of Pope Urban VIII to make weapons for the fortification of the Castel Sant' Angelo. The hole in the center of the ceiling, though, is an original feature designed for architectural reasons (the dome would collapse without it.) If it happens to be raining, you should definitely go to the Pantheon to see the rain pouring into the building through the hole in the ceiling. There are holes in the ground that drain the water. The spectacular doors are Romans, but not the original. The original bronze beams of the pronao were melted down by Pope Urban VIII and might have been used to create Bernini's Baldacchino, or canopy, in Saint Peter's. The dome is the largest masonry dome in the world, larger than that of Saint Peter. The building now appears to be built in a depression, but this was not the original appearance. The street level at the sides and rear has risen about 10 m since its construction due to the accumulation of debris from 2,000 years of settlement. This has necessitated the maintenance of the deep trench that keeps the building from being buried. The Pantheon was free for many years, but fees began being charged in 2023.
Not, as commonly believed, named after the country but after the city of Strasbourg (Argentoratum in Latin), from which came a courtesan of Pope Alexander VI who lived nearby. Four Roman Republican-era temples, Pompey's theater and a Roman public toilet ("Latrina") have been excavated. The Pompey Theater is the site where Julius Caesar was stabbed to death by senators in 44 BC. The largo is also home to a large number of cats which are tended by the local animal rights organization - purportedly a jab at Mussolini who excavated the area and is said to have hated cats. As of September 2024 no cats could be seen at least from the street.
The temple of the Emperor Hadrian was consecrated in 145 AD by Emperor Antoninus Pius. The remains of the antique temple were incorporated into a new building that served as the Papal Customs House. It was finished around 1690 and today accommodates the Stock Exchange (Borsa).
Minor basilica in 17th-century baroque style with good art inside. In a smaller Italian city, this might be a prime attraction, but in Rome, with its abundance of great churches, this is merely a pleasant church of secondary interest to visit if you are in the area.
This little church is hard to find but well worth the extra effort although it is often closed when you get there. One of Borromini's masterpieces. It is located only a block from Piazza Navona, but not usually visible from the street, as you must enter the courtyard of an old palazzo to reach the church. Sant'Ivo is a small church the dome of which is shaped like the Star of David, but with every other point rounded. The steeple seen from the outside looks like it has a staircase wrapped around it that ascends to heaven. As the church was commissioned by the Barberini family that produced a number of popes and whose family symbol was the bee—some say the steeple resembles the stinger of the insect.
This church is literally right next to the Pantheon. It is one of Rome's only Gothic churches, and well worth looking inside, although its plain square façade makes it look inconspicuous from outside. Excellent stained glass windows.