Science of the Past

In particular, architecture and construction and the physics involved:  a field of dolmens.
Not near Stonehenge, but in Damiya, Jordan, and is about 3000 to 3600 years old. The megalithic culture dates to 3000 to 8000 years ago, so it is a culture that is geographically widespread and it the immediate pre-cursor to our own times and culture: starry skies and astronomy, the building of massive observatories, sighting structures and cultural centers, soon to be followed by orreries - like the Antikythera device - and the Iliad which mentions robotic maidens and self-propelled tripods!