Santi Nereo e Achilleo

Santi Nereo e Achilleo is an early Christian basilica in Rome with three naves separated by octagonal columns and decorated with frescoes depicting martyr stories. The building sits near the Baths of Caracalla and offers insight into early Christian religious architecture with Renaissance-era decorative additions.

The basilica was founded as a church in the fourth century and underwent substantial reconstruction in the eighth century under Pope Leo III after the surrounding marshland was drained. This rebuilding transformed the structure into a stable building and marks a pivotal moment in the site's development.

The walls display detailed frescoes of martyr stories that show how this place served as a site of devotion during the Counter-Reformation period. Visitors can experience here the visual storytelling of religious scenes that held deep meaning for believers of that era.

The church is located near the Baths of Caracalla and is reachable from Circo Massimo metro station, making access straightforward. It is best to check opening hours in advance and wear comfortable shoes, as the interior has much to explore.

A facade inscription references a cloth that Saint Peter is said to have left at this location while escaping from an ancient prison. This detail connects the place to early Christian stories of escape and makes it more than just an architectural structure.