An hour later Cugel passed beside a forest where he discovered a small octagonal chapel with the roof collapsed.

A circular opening in the vault of the octagonal chapel allows a view through up to the dome of the upper church.

The western side, with a tiled roof, has octagonal chapels, and house the church's main portal.

Chapels open off this space, including an octagonal chapel on the south-east side where Borromini intended to be buried.

The interior contains the crypt and an octagonal chapel in the center.

This is a tiny octagonal chapel which keeps a venerated statue of the Virgin Mary.

There has been two churches on this site, the first being an octagonal chapel opened in 1782.

A Gothic-style octagonal chapel and shrine are located near the altar.

The interior includes an octagonal chapel and panelled rooms.

The palace included a circular courtyard and an octagonal chapel, which was never built.