Explore the fascinating world of ancient astronomy in this 29-minute video lecture focusing on Stonehenge and archaeoastronomy. Discover how ancient civilizations viewed the sky and its crucial role in their daily lives, serving as a timekeeper, calendar, compass, and agricultural almanac. Delve into the structure and construction of Stonehenge, examining its astronomical alignments and potential purposes. Learn about the Earth's tilt and its impact on solstices, as well as how early cultures used celestial events to mark time. Investigate various theories surrounding Stonehenge's purpose, from Gerald Hawkins' computer hypothesis to its possible role as a Druid religious temple. Gain insights into the field of archaeoastronomy and its importance in understanding ancient monuments' orientations to the sky.