|The Gallarus Oratory is an early Christian church located on the Dingle Peninsula, County Kerry, Ireland. According to local legend, if a person climbs out of the oratory via the window, their soul will be cleansed||It is built with stones from the Dingle
Beds of the Upper Silurian Old Red Sandstone. The stones were laid
at a slight angle, lower on the outside than on the inside, thus
allowing rainwater to run off. This design has kept the interior
relatively dry despite the lack of mortaring, allowing the building
to remain in excellent condition.