Archaeology
Gower Bone Cave archaeological sites of the Gower Peninsular https://www.gowerbonecaves.org.uk 14 Stonehenge Landscape one of the world’s best-preserved prehistoric sites https://www.nationaltrust.org.uk/stonehenge-landscape/ 7 Stonehenge site and its environs An an excellent interactive map https://www.english-heritage.org.uk/daysout/properties/stonehenge/ 1 stonehenge.co.uk For historical details, photos and more about Stonehenge https://www.stonehenge.co.uk 1 The Stonehenge Riverside Project Full details of the research work undertaken over the last several years https://www.sheffield.ac.uk/archaeology/research/2.4329/index 0
Astronomy
U.S. Naval Observatory Earth’s Seasons Equinoxes, Solstices, Perihelion, and Aphelion 1992-2020 (U.S. Naval Observatory|) https://www.cnmoc.usff.navy.mil/usno/ 13
