.mw-parser-output .hidden-begin{box-sizing:border-box;width:100%;padding:5px;border:none;font-size:95%}.mw-parser-output .hidden-title{font-weight:bold;line-height:1.6;text-align:left}.mw-parser-output .hidden-content{text-align:left}@media all and (max-width:500px){.mw-parser-output .hidden-begin{width:auto!important;clear:none!important;float:none!important))You can help expand this article with text translated from the corresponding article in Italian. (June 2018) Click [show] for important translation instructions. View a machine-translated version of the Italian article. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Consider adding a topic to this template: there are already 3,065 articles in the main category, and specifying|topic= will aid in categorization. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing Italian Wikipedia article at [[:it:Rocca Paolina]]; see its history for attribution. You should also add the template ((Translated|it|Rocca Paolina)) to the talk page. For more guidance, see Wikipedia:Translation.
The Rocca and Porta Marzia

The Rocca Paolina was a Renaissance fortress in Perugia, built in 1540-1543 for Pope Paul III to designs by Antonio da Sangallo the Younger. It destroyed a large number of Etruscan, Roman and medieval buildings, including the Baglioni family's houses in the burgh of Santa Giuliana as well as over a hundred tower-houses, gates, churches and monasteries. It turned the former streets of the historic city centre into underground passageways, which are now open to the public.

The fortress was partially destroyed in 1848 then rebuilt by Pope Pius IX in 1860 before being finally demolished in 1861 after the city was annexed by the Kingdom of Italy. The underground via Bagliona and the remains of the medieval quarter were then uncovered and restored in 1932, with restoration works in 1965. Part of the supporting wall survives on viale Indipendenza and a bastion on via Marzia, housing an exhibition space and museum.