30th century BC in architecture From Wikipedia, the free encyclopedia Buildings Alvastra pile-dwelling – circa 3000 BC in Neolithic Scandinavia Barbar Temple – oldest of the three temples built in 3000 BC, in present-day Bahrain[1] Diraz Temple – circa 3rd millennium BCE, in present-day Bahrain Tepe Sialk – claimed to be the world's oldest ziggurat built in 3000 BC, in present-day Iran See also 29th century BC 29th century BC in architecture Timeline of architecture References ↑ al-Iʻlām, Bahrain Wizārat (1986). Bahrain Through the Ages: The Archaeology. Routledge. p. 46. ISBN 978-0-7103-0112-3. This architecture-related article is a stub. You can help Wikipedia by expanding it.vte Related Articles