25th century BC in architecture
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Buildings and structures
=Buildings=
- The first stones are erected at Stonehenge.{{cite book |last1=Allen |first1=Michael J. |last2=Gardiner |first2=Julie |last3=Sheridan |first3=Alison |title=Is There a British Chalcolithic?: People, Place and Polity in the later Third Millennium |date=2012 |publisher=Oxbow Books |isbn=978-1-84217-897-3 |page=478 |url=https://books.google.com/books?id=c7t1DwAAQBAJ&pg=PT478 |language=en}}