Museo delle Mura, Historical park museum at Porta San Sebastiano, Italy
The Museo delle Mura is a history museum housed inside the Porta San Sebastiano, one of the main gates of the Aurelian Wall on the southern edge of Rome. The building is itself part of the ancient city fortification and contains models, relief maps, and excavated objects that trace how the wall was built and modified.
The Aurelian Wall was built from 270 CE onward, when the city needed a fast defensive ring against growing threats from outside, and it still follows much of its original route today. The Porta San Sebastiano was remodeled several times in later centuries and took on its current form with two round towers during the Byzantine period.
The name Museo delle Mura simply means Museum of the Walls, a reference to the ancient ring of stone that still surrounds much of the city today. Walking through the gate tower, visitors can see how the structure was used over many centuries, with changes to the brickwork that reflect different periods of use.
The museum is spread across several levels, including a walkable section of the wall itself, so sturdy shoes are a good idea before you head inside. The building sits at the end of Via di Porta San Sebastiano and is easy to spot from the street.
The Porta San Sebastiano was used as a private home by the Marquis Guglielmo Doria Pamphilj well into the 20th century, and some rooms still show traces of that domestic life alongside the ancient stonework. This overlap of a family home and a Roman fortification is something visitors rarely expect to find.
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