Great Dolmen of Comenda da Igreja, Megalithic dolmen in Nossa Senhora do Bispo, Portugal.

The Great Dolmen of Comenda da Igreja is a megalithic funerary monument oriented west to east, with a polygonal central chamber about 4 metres wide and 6 metres high, roofed by a granite slab. A rectangular corridor 10 metres long and 1.8 metres high leads into it, covered by separate slabs and still intact.

The site was occupied between the 4th millennium BC and the middle of the 3rd millennium BC by semi-nomadic or sedentary groups linked to the communities of ancient Évora. It has been classified as a National Monument since 1936.

This burial place served multiple generations and shows how prehistoric communities honored their dead together. The shared chamber reveals the importance of collective rituals and family ties in early societies.

The dolmen stands in an isolated patch of wooded scrub on a plain, reached by local roads from Montemor-o-Novo; the nearest reference point is the parish of Nossa Senhora do Bispo, not São Geraldo. The corridor is 180 cm high, so most visitors can walk upright into it, while the chamber walls rise to 6 m. Ground around the stones is uneven forest floor, so sturdy shoes help.

The roof covering the entrance passage survives mostly intact, which sets this structure apart from many other dolmens. This preserved ceiling allows visitors to experience the spatial arrangement that prehistoric people would have encountered.