feature similar to the 'lightbox' at Newgrange may be matched at Bryn Celli Ddu. Multi-period landscape Between 2015 and 2020 the 'Bryn Celli Ddu Public Archaeology Project' has been engaged in studies of the wider landscape around the site. This is a partnership between Cadw and Manchester Metropolitan University with the aim of involving local communities in archaeological investigation. This has resulted in study of known ancient rock art on a nearby outcrop, and also identified and uncovered a number of other rock outcrops close by that have 'cup mark' decorations chipped into them. A second burial chamber, 50m to the south of the extant one, had been leveled, but as part of the project a 2019 excavation has revealed a large circular burial cairn which radio-carbon dating has placed at 1900 BC, which is over a thousand years after the earlier passage grave was built. Media The serpentine pattern and the passage tomb featured strongly in the short animated film, Songs from Stones, about some of Anglesey's evocative archaeological sites and artefacts, produced as part of the Cultural Olympiad in 2012. The HeritageTogether project has used photogrammetry to create 3D models of the site and the standing stone. Media company Mint Motion have produced an animated video of the site's development over time, and a flythough of a pointcloud model of the site (see external links below). The site was featured and explored in an episode of the US reality television series Expedition Unknown. Gallery See also List of Scheduled Monuments in Anglesey List of Cadw properties References External links Ancient Britain - Bryn Celli Ddu Pictures and description of Bryn Celli Ddu Steve Burrow... says the mound's stone passage points at the midsummer rising sun... The rays light up a quartz-rich stone at the back of the tomb. photos of Bryn Celli Ddu and surrounding area on geograph Animated video of development of Bryn Celli Ddu flythough of a pointcloud model of the site 3D model of Bryn Celli Ddu 3D model of the standing stone at Bryn Celli Ddu Prehistoric sites in Anglesey Bronze Age Wales Cadw Stone Age sites in Wales Llanddaniel Fab Scheduled monuments in Anglesey Henges Tombs in the United Kingdom