25th century BC in architecture From Wikipedia, the free encyclopedia Buildings The first stones are erected at Stonehenge.[1] References ↑ Allen, Michael J.; Gardiner, Julie; Sheridan, Alison (2012). Is There a British Chalcolithic?: People, Place and Polity in the later Third Millennium. Oxbow Books. p. 478. ISBN 978-1-84217-897-3. This architecture-related article is a stub. You can help Wikipedia by expanding it.vte Related Articles