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Photo: No machine-readable author provided. Joris assumed (based on copyright claims)., Public domain via Wikimedia Commons
Remains of the first city walls, built in the early 4th century BC and attributed to king Servius Tullius.
The Servian Wall is an ancient Roman defensive barrier constructed around the city of Rome in the early 4th century BC. The wall was built of volcanic tuff and was up to 10 m (33 ft) in height in places, 3.6 m (12 ft) wide at its base, 11 km (6.8 mi) long, and is believed to have had 16 main gates, of which only one or two have survived, and enclosed a total area of 246 hectares. In the 3rd century AD it was superseded by the construction of the larger Aurelian Walls as the city of Rome grew beyond the boundary of the Servian Wall.
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A magnificent collection of ancient Roman sculptures, mosaics and wall paintings, including the famous paintings from the Imperial-era villa discovered under the Villa Farnesina, as well as the dining room from the Empress Livia's villa at Prima Porta. Located across the piazza from Termini, opposite the Baths of Diocletian.
On the site of the Roman baths this museum houses an enormous collection of statues, etc.
This church was built inside the former baths of Diocletian. Very light and airy inside. Note the unusual art on the outside doors. Around solar noon check out the sun's image on Francesco Bianchini's meridian line inside.
More modern than most Roman churches: it was not started until 1873. This is Rome’s Episcopalian church. Some very interesting artwork, particularly the mosaics by Edward Burne-Jones of the Pre-Raphaelite school.
Now invaded by readers of Dan Brown's Angels and Demons, this is an interesting Baroque church containing Bernini's "Ecstasy of St. Teresa". Either side of this chapel are characters in what can best be described as theatre boxes. These are members of the Cornaro family, who paid for Bernini's sculpture. (As of Feb 2015, not visible due to restoration work.)
At the northern end of Via XX Settembre next to the Porta Pia designed by Michaelangelo. The previous embassy had been destroyed by a terrorist bomb in 1946 and was eventually replaced by this world-renowned modern design by Sir Basil Spence. It was built on stilts so as not to interrupt the view of the garden.